1 # This is an example configuration file for the LVM2 system.
2 # It contains the default settings that would be used if there was no
3 # /etc/lvm/lvm.conf file.
5 # Refer to 'man lvm.conf' for further information including the file layout.
7 # Refer to 'man lvm.conf' for information about how settings configured in
8 # this file are combined with built-in values and command line options to
9 # arrive at the final values used by LVM.
11 # Refer to 'man lvmconfig' for information about displaying the built-in
12 # and configured values used by LVM.
14 # If a default value is set in this file (not commented out), then a
15 # new version of LVM using this file will continue using that value,
16 # even if the new version of LVM changes the built-in default value.
18 # To put this file in a different directory and override /etc/lvm set
19 # the environment variable LVM_SYSTEM_DIR before running the tools.
21 # N.B. Take care that each setting only appears once if uncommenting
22 # example settings in this file.
25 # Configuration section config.
26 # How LVM configuration settings are handled.
29 # Configuration option config/checks.
30 # If enabled, any LVM configuration mismatch is reported.
31 # This implies checking that the configuration key is understood by
32 # LVM and that the value of the key is the proper type. If disabled,
33 # any configuration mismatch is ignored and the default value is used
34 # without any warning (a message about the configuration key not being
35 # found is issued in verbose mode only).
38 # Configuration option config/abort_on_errors.
39 # Abort the LVM process if a configuration mismatch is found.
42 # Configuration option config/profile_dir.
43 # Directory where LVM looks for configuration profiles.
44 profile_dir = "/etc/lvm/profile"
47 # Configuration section devices.
48 # How LVM uses block devices.
51 # Configuration option devices/dir.
52 # Directory in which to create volume group device nodes.
53 # Commands also accept this as a prefix on volume group names.
54 # This configuration option is advanced.
57 # Configuration option devices/scan.
58 # Directories containing device nodes to use with LVM.
59 # This configuration option is advanced.
62 # Configuration option devices/obtain_device_list_from_udev.
63 # Obtain the list of available devices from udev.
64 # This avoids opening or using any inapplicable non-block devices or
65 # subdirectories found in the udev directory. Any device node or
66 # symlink not managed by udev in the udev directory is ignored. This
67 # setting applies only to the udev-managed device directory; other
68 # directories will be scanned fully. LVM needs to be compiled with
69 # udev support for this setting to apply.
70 obtain_device_list_from_udev = 1
72 # Configuration option devices/external_device_info_source.
73 # Select an external device information source.
74 # Some information may already be available in the system and LVM can
75 # use this information to determine the exact type or use of devices it
76 # processes. Using an existing external device information source can
77 # speed up device processing as LVM does not need to run its own native
78 # routines to acquire this information. For example, this information
79 # is used to drive LVM filtering like MD component detection, multipath
80 # component detection, partition detection and others.
84 # No external device information source is used.
86 # Reuse existing udev database records. Applicable only if LVM is
87 # compiled with udev support.
89 external_device_info_source = "none"
91 # Configuration option devices/preferred_names.
92 # Select which path name to display for a block device.
93 # If multiple path names exist for a block device, and LVM needs to
94 # display a name for the device, the path names are matched against
95 # each item in this list of regular expressions. The first match is
96 # used. Try to avoid using undescriptive /dev/dm-N names, if present.
97 # If no preferred name matches, or if preferred_names are not defined,
98 # the following built-in preferences are applied in order until one
99 # produces a preferred name:
100 # Prefer names with path prefixes in the order of:
101 # /dev/mapper, /dev/disk, /dev/dm-*, /dev/block.
102 # Prefer the name with the least number of slashes.
103 # Prefer a name that is a symlink.
104 # Prefer the path with least value in lexicographical order.
107 # preferred_names = [ "^/dev/mpath/", "^/dev/mapper/mpath", "^/dev/[hs]d" ]
109 # This configuration option does not have a default value defined.
111 # Configuration option devices/filter.
112 # Limit the block devices that are used by LVM commands.
113 # This is a list of regular expressions used to accept or reject block
114 # device path names. Each regex is delimited by a vertical bar '|'
115 # (or any character) and is preceded by 'a' to accept the path, or
116 # by 'r' to reject the path. The first regex in the list to match the
117 # path is used, producing the 'a' or 'r' result for the device.
118 # When multiple path names exist for a block device, if any path name
119 # matches an 'a' pattern before an 'r' pattern, then the device is
120 # accepted. If all the path names match an 'r' pattern first, then the
121 # device is rejected. Unmatching path names do not affect the accept
122 # or reject decision. If no path names for a device match a pattern,
123 # then the device is accepted. Be careful mixing 'a' and 'r' patterns,
124 # as the combination might produce unexpected results (test changes.)
125 # Run vgscan after changing the filter to regenerate the cache.
126 # See the use_lvmetad comment for a special case regarding filters.
129 # Accept every block device:
130 # filter = [ "a|.*/|" ]
131 # Reject the cdrom drive:
132 # filter = [ "r|/dev/cdrom|" ]
133 # Work with just loopback devices, e.g. for testing:
134 # filter = [ "a|loop|", "r|.*|" ]
135 # Accept all loop devices and ide drives except hdc:
136 # filter = [ "a|loop|", "r|/dev/hdc|", "a|/dev/ide|", "r|.*|" ]
137 # Use anchors to be very specific:
138 # filter = [ "a|^/dev/hda8$|", "r|.*/|" ]
140 # This configuration option has an automatic default value.
141 # filter = [ "a|.*/|" ]
143 # Configuration option devices/global_filter.
144 # Limit the block devices that are used by LVM system components.
145 # Because devices/filter may be overridden from the command line, it is
146 # not suitable for system-wide device filtering, e.g. udev and lvmetad.
147 # Use global_filter to hide devices from these LVM system components.
148 # The syntax is the same as devices/filter. Devices rejected by
149 # global_filter are not opened by LVM.
150 # This configuration option has an automatic default value.
151 # global_filter = [ "a|.*/|" ]
152 <% if @global_filter -%>
153 global_filter = <%= @global_filter -%>
157 # Configuration option devices/cache_dir.
158 # Directory in which to store the device cache file.
159 # The results of filtering are cached on disk to avoid rescanning dud
160 # devices (which can take a very long time). By default this cache is
161 # stored in a file named .cache. It is safe to delete this file; the
162 # tools regenerate it. If obtain_device_list_from_udev is enabled, the
163 # list of devices is obtained from udev and any existing .cache file
165 cache_dir = "/run/lvm"
167 # Configuration option devices/cache_file_prefix.
168 # A prefix used before the .cache file name. See devices/cache_dir.
169 cache_file_prefix = ""
171 # Configuration option devices/write_cache_state.
172 # Enable/disable writing the cache file. See devices/cache_dir.
173 write_cache_state = 1
175 # Configuration option devices/types.
176 # List of additional acceptable block device types.
177 # These are of device type names from /proc/devices, followed by the
178 # maximum number of partitions.
181 # types = [ "fd", 16 ]
183 # This configuration option is advanced.
184 # This configuration option does not have a default value defined.
186 # Configuration option devices/sysfs_scan.
187 # Restrict device scanning to block devices appearing in sysfs.
188 # This is a quick way of filtering out block devices that are not
189 # present on the system. sysfs must be part of the kernel and mounted.)
192 # Configuration option devices/multipath_component_detection.
193 # Ignore devices that are components of DM multipath devices.
194 multipath_component_detection = 1
196 # Configuration option devices/md_component_detection.
197 # Ignore devices that are components of software RAID (md) devices.
198 md_component_detection = 1
200 # Configuration option devices/fw_raid_component_detection.
201 # Ignore devices that are components of firmware RAID devices.
202 # LVM must use an external_device_info_source other than none for this
203 # detection to execute.
204 fw_raid_component_detection = 0
206 # Configuration option devices/md_chunk_alignment.
207 # Align PV data blocks with md device's stripe-width.
208 # This applies if a PV is placed directly on an md device.
209 md_chunk_alignment = 1
211 # Configuration option devices/default_data_alignment.
212 # Default alignment of the start of a PV data area in MB.
213 # If set to 0, a value of 64KiB will be used.
214 # Set to 1 for 1MiB, 2 for 2MiB, etc.
215 # This configuration option has an automatic default value.
216 # default_data_alignment = 1
218 # Configuration option devices/data_alignment_detection.
219 # Detect PV data alignment based on sysfs device information.
220 # The start of a PV data area will be a multiple of minimum_io_size or
221 # optimal_io_size exposed in sysfs. minimum_io_size is the smallest
222 # request the device can perform without incurring a read-modify-write
223 # penalty, e.g. MD chunk size. optimal_io_size is the device's
224 # preferred unit of receiving I/O, e.g. MD stripe width.
225 # minimum_io_size is used if optimal_io_size is undefined (0).
226 # If md_chunk_alignment is enabled, that detects the optimal_io_size.
227 # This setting takes precedence over md_chunk_alignment.
228 data_alignment_detection = 1
230 # Configuration option devices/data_alignment.
231 # Alignment of the start of a PV data area in KiB.
232 # If a PV is placed directly on an md device and md_chunk_alignment or
233 # data_alignment_detection are enabled, then this setting is ignored.
234 # Otherwise, md_chunk_alignment and data_alignment_detection are
235 # disabled if this is set. Set to 0 to use the default alignment or the
236 # page size, if larger.
239 # Configuration option devices/data_alignment_offset_detection.
240 # Detect PV data alignment offset based on sysfs device information.
241 # The start of a PV aligned data area will be shifted by the
242 # alignment_offset exposed in sysfs. This offset is often 0, but may
243 # be non-zero. Certain 4KiB sector drives that compensate for windows
244 # partitioning will have an alignment_offset of 3584 bytes (sector 7
245 # is the lowest aligned logical block, the 4KiB sectors start at
246 # LBA -1, and consequently sector 63 is aligned on a 4KiB boundary).
247 # pvcreate --dataalignmentoffset will skip this detection.
248 data_alignment_offset_detection = 1
250 # Configuration option devices/ignore_suspended_devices.
251 # Ignore DM devices that have I/O suspended while scanning devices.
252 # Otherwise, LVM waits for a suspended device to become accessible.
253 # This should only be needed in recovery situations.
254 ignore_suspended_devices = 0
256 # Configuration option devices/ignore_lvm_mirrors.
257 # Do not scan 'mirror' LVs to avoid possible deadlocks.
258 # This avoids possible deadlocks when using the 'mirror' segment type.
259 # This setting determines whether LVs using the 'mirror' segment type
260 # are scanned for LVM labels. This affects the ability of mirrors to
261 # be used as physical volumes. If this setting is enabled, it is
262 # impossible to create VGs on top of mirror LVs, i.e. to stack VGs on
263 # mirror LVs. If this setting is disabled, allowing mirror LVs to be
264 # scanned, it may cause LVM processes and I/O to the mirror to become
265 # blocked. This is due to the way that the mirror segment type handles
266 # failures. In order for the hang to occur, an LVM command must be run
267 # just after a failure and before the automatic LVM repair process
268 # takes place, or there must be failures in multiple mirrors in the
269 # same VG at the same time with write failures occurring moments before
270 # a scan of the mirror's labels. The 'mirror' scanning problems do not
271 # apply to LVM RAID types like 'raid1' which handle failures in a
272 # different way, making them a better choice for VG stacking.
273 ignore_lvm_mirrors = 1
275 # Configuration option devices/disable_after_error_count.
276 # Number of I/O errors after which a device is skipped.
277 # During each LVM operation, errors received from each device are
278 # counted. If the counter of a device exceeds the limit set here,
279 # no further I/O is sent to that device for the remainder of the
280 # operation. Setting this to 0 disables the counters altogether.
281 disable_after_error_count = 0
283 # Configuration option devices/require_restorefile_with_uuid.
284 # Allow use of pvcreate --uuid without requiring --restorefile.
285 require_restorefile_with_uuid = 1
287 # Configuration option devices/pv_min_size.
288 # Minimum size in KiB of block devices which can be used as PVs.
289 # In a clustered environment all nodes must use the same value.
290 # Any value smaller than 512KiB is ignored. The previous built-in
294 # Configuration option devices/issue_discards.
295 # Issue discards to PVs that are no longer used by an LV.
296 # Discards are sent to an LV's underlying physical volumes when the LV
297 # is no longer using the physical volumes' space, e.g. lvremove,
298 # lvreduce. Discards inform the storage that a region is no longer
299 # used. Storage that supports discards advertise the protocol-specific
300 # way discards should be issued by the kernel (TRIM, UNMAP, or
301 # WRITE SAME with UNMAP bit set). Not all storage will support or
302 # benefit from discards, but SSDs and thinly provisioned LUNs
303 # generally do. If enabled, discards will only be issued if both the
304 # storage and kernel provide support.
305 <% if @issue_discards -%>
313 # Configuration option devices/allow_changes_with_duplicate_pvs.
314 # Allow VG modification while a PV appears on multiple devices.
315 # When a PV appears on multiple devices, LVM attempts to choose the
316 # best device to use for the PV. If the devices represent the same
317 # underlying storage, the choice has minimal consequence. If the
318 # devices represent different underlying storage, the wrong choice
319 # can result in data loss if the VG is modified. Disabling this
320 # setting is the safest option because it prevents modifying a VG
321 # or activating LVs in it while a PV appears on multiple devices.
322 # Enabling this setting allows the VG to be used as usual even with
324 allow_changes_with_duplicate_pvs = 0
327 # Configuration section allocation.
328 # How LVM selects space and applies properties to LVs.
331 # Configuration option allocation/cling_tag_list.
332 # Advise LVM which PVs to use when searching for new space.
333 # When searching for free space to extend an LV, the 'cling' allocation
334 # policy will choose space on the same PVs as the last segment of the
335 # existing LV. If there is insufficient space and a list of tags is
336 # defined here, it will check whether any of them are attached to the
337 # PVs concerned and then seek to match those PV tags between existing
338 # extents and new extents.
341 # Use the special tag "@*" as a wildcard to match any PV tag:
342 # cling_tag_list = [ "@*" ]
343 # LVs are mirrored between two sites within a single VG, and
344 # PVs are tagged with either @site1 or @site2 to indicate where
346 # cling_tag_list = [ "@site1", "@site2" ]
348 # This configuration option does not have a default value defined.
350 # Configuration option allocation/maximise_cling.
351 # Use a previous allocation algorithm.
352 # Changes made in version 2.02.85 extended the reach of the 'cling'
353 # policies to detect more situations where data can be grouped onto
354 # the same disks. This setting can be used to disable the changes
355 # and revert to the previous algorithm.
358 # Configuration option allocation/use_blkid_wiping.
359 # Use blkid to detect existing signatures on new PVs and LVs.
360 # The blkid library can detect more signatures than the native LVM
361 # detection code, but may take longer. LVM needs to be compiled with
362 # blkid wiping support for this setting to apply. LVM native detection
363 # code is currently able to recognize: MD device signatures,
364 # swap signature, and LUKS signatures. To see the list of signatures
365 # recognized by blkid, check the output of the 'blkid -k' command.
368 # Configuration option allocation/wipe_signatures_when_zeroing_new_lvs.
369 # Look for and erase any signatures while zeroing a new LV.
370 # The --wipesignatures option overrides this setting.
371 # Zeroing is controlled by the -Z/--zero option, and if not specified,
372 # zeroing is used by default if possible. Zeroing simply overwrites the
373 # first 4KiB of a new LV with zeroes and does no signature detection or
374 # wiping. Signature wiping goes beyond zeroing and detects exact types
375 # and positions of signatures within the whole LV. It provides a
376 # cleaner LV after creation as all known signatures are wiped. The LV
377 # is not claimed incorrectly by other tools because of old signatures
378 # from previous use. The number of signatures that LVM can detect
379 # depends on the detection code that is selected (see
380 # use_blkid_wiping.) Wiping each detected signature must be confirmed.
381 # When this setting is disabled, signatures on new LVs are not detected
382 # or erased unless the --wipesignatures option is used directly.
383 wipe_signatures_when_zeroing_new_lvs = 1
385 # Configuration option allocation/mirror_logs_require_separate_pvs.
386 # Mirror logs and images will always use different PVs.
387 # The default setting changed in version 2.02.85.
388 mirror_logs_require_separate_pvs = 0
390 # Configuration option allocation/raid_stripe_all_devices.
391 # Stripe across all PVs when RAID stripes are not specified.
392 # If enabled, all PVs in the VG or on the command line are used for raid0/4/5/6/10
393 # when the command does not specify the number of stripes to use.
394 # This was the default behaviour until release 2.02.162.
395 # This configuration option has an automatic default value.
396 # raid_stripe_all_devices = 0
398 # Configuration option allocation/cache_pool_metadata_require_separate_pvs.
399 # Cache pool metadata and data will always use different PVs.
400 cache_pool_metadata_require_separate_pvs = 0
402 # Configuration option allocation/cache_mode.
403 # The default cache mode used for new cache.
407 # Data blocks are immediately written from the cache to disk.
409 # Data blocks are written from the cache back to disk after some
410 # delay to improve performance.
412 # This setting replaces allocation/cache_pool_cachemode.
413 # This configuration option has an automatic default value.
414 # cache_mode = "writethrough"
416 # Configuration option allocation/cache_policy.
417 # The default cache policy used for new cache volume.
418 # Since kernel 4.2 the default policy is smq (Stochastic multique),
419 # otherwise the older mq (Multiqueue) policy is selected.
420 # This configuration option does not have a default value defined.
422 # Configuration section allocation/cache_settings.
423 # Settings for the cache policy.
424 # See documentation for individual cache policies for more info.
425 # This configuration section has an automatic default value.
429 # Configuration option allocation/cache_pool_chunk_size.
430 # The minimal chunk size in KiB for cache pool volumes.
431 # Using a chunk_size that is too large can result in wasteful use of
432 # the cache, where small reads and writes can cause large sections of
433 # an LV to be mapped into the cache. However, choosing a chunk_size
434 # that is too small can result in more overhead trying to manage the
435 # numerous chunks that become mapped into the cache. The former is
436 # more of a problem than the latter in most cases, so the default is
437 # on the smaller end of the spectrum. Supported values range from
438 # 32KiB to 1GiB in multiples of 32.
439 # This configuration option does not have a default value defined.
441 # Configuration option allocation/cache_pool_max_chunks.
442 # The maximum number of chunks in a cache pool.
443 # For cache target v1.9 the recommended maximumm is 1000000 chunks.
444 # Using cache pool with more chunks may degrade cache performance.
445 # This configuration option does not have a default value defined.
447 # Configuration option allocation/thin_pool_metadata_require_separate_pvs.
448 # Thin pool metdata and data will always use different PVs.
449 thin_pool_metadata_require_separate_pvs = 0
451 # Configuration option allocation/thin_pool_zero.
452 # Thin pool data chunks are zeroed before they are first used.
453 # Zeroing with a larger thin pool chunk size reduces performance.
454 # This configuration option has an automatic default value.
457 # Configuration option allocation/thin_pool_discards.
458 # The discards behaviour of thin pool volumes.
465 # This configuration option has an automatic default value.
466 # thin_pool_discards = "passdown"
468 # Configuration option allocation/thin_pool_chunk_size_policy.
469 # The chunk size calculation policy for thin pool volumes.
473 # If thin_pool_chunk_size is defined, use it. Otherwise, calculate
474 # the chunk size based on estimation and device hints exposed in
475 # sysfs - the minimum_io_size. The chunk size is always at least
478 # If thin_pool_chunk_size is defined, use it. Otherwise, calculate
479 # the chunk size for performance based on device hints exposed in
480 # sysfs - the optimal_io_size. The chunk size is always at least
483 # This configuration option has an automatic default value.
484 # thin_pool_chunk_size_policy = "generic"
486 # Configuration option allocation/thin_pool_chunk_size.
487 # The minimal chunk size in KiB for thin pool volumes.
488 # Larger chunk sizes may improve performance for plain thin volumes,
489 # however using them for snapshot volumes is less efficient, as it
490 # consumes more space and takes extra time for copying. When unset,
491 # lvm tries to estimate chunk size starting from 64KiB. Supported
492 # values are in the range 64KiB to 1GiB.
493 # This configuration option does not have a default value defined.
495 # Configuration option allocation/physical_extent_size.
496 # Default physical extent size in KiB to use for new VGs.
497 # This configuration option has an automatic default value.
498 # physical_extent_size = 4096
501 # Configuration section log.
502 # How LVM log information is reported.
505 # Configuration option log/report_command_log.
506 # Enable or disable LVM log reporting.
507 # If enabled, LVM will collect a log of operations, messages,
508 # per-object return codes with object identification and associated
509 # error numbers (errnos) during LVM command processing. Then the
510 # log is either reported solely or in addition to any existing
511 # reports, depending on LVM command used. If it is a reporting command
512 # (e.g. pvs, vgs, lvs, lvm fullreport), then the log is reported in
513 # addition to any existing reports. Otherwise, there's only log report
514 # on output. For all applicable LVM commands, you can request that
515 # the output has only log report by using --logonly command line
516 # option. Use log/command_log_cols and log/command_log_sort settings
517 # to define fields to display and sort fields for the log report.
518 # You can also use log/command_log_selection to define selection
519 # criteria used each time the log is reported.
520 # This configuration option has an automatic default value.
521 # report_command_log = 0
523 # Configuration option log/command_log_sort.
524 # List of columns to sort by when reporting command log.
525 # See <lvm command> --logonly --configreport log -o help
526 # for the list of possible fields.
527 # This configuration option has an automatic default value.
528 # command_log_sort = "log_seq_num"
530 # Configuration option log/command_log_cols.
531 # List of columns to report when reporting command log.
532 # See <lvm command> --logonly --configreport log -o help
533 # for the list of possible fields.
534 # This configuration option has an automatic default value.
535 # command_log_cols = "log_seq_num,log_type,log_context,log_object_type,log_object_name,log_object_id,log_object_group,log_object_group_id,log_message,log_errno,log_ret_code"
537 # Configuration option log/command_log_selection.
538 # Selection criteria used when reporting command log.
539 # You can define selection criteria that are applied each
540 # time log is reported. This way, it is possible to control the
541 # amount of log that is displayed on output and you can select
542 # only parts of the log that are important for you. To define
543 # selection criteria, use fields from log report. See also
544 # <lvm command> --logonly --configreport log -S help for the
545 # list of possible fields and selection operators. You can also
546 # define selection criteria for log report on command line directly
547 # using <lvm command> --configreport log -S <selection criteria>
548 # which has precedence over log/command_log_selection setting.
549 # For more information about selection criteria in general, see
551 # This configuration option has an automatic default value.
552 # command_log_selection = "!(log_type=status && message=success)"
554 # Configuration option log/verbose.
555 # Controls the messages sent to stdout or stderr.
558 # Configuration option log/silent.
559 # Suppress all non-essential messages from stdout.
560 # This has the same effect as -qq. When enabled, the following commands
561 # still produce output: dumpconfig, lvdisplay, lvmdiskscan, lvs, pvck,
562 # pvdisplay, pvs, version, vgcfgrestore -l, vgdisplay, vgs.
563 # Non-essential messages are shifted from log level 4 to log level 5
564 # for syslog and lvm2_log_fn purposes.
565 # Any 'yes' or 'no' questions not overridden by other arguments are
566 # suppressed and default to 'no'.
569 # Configuration option log/syslog.
570 # Send log messages through syslog.
573 # Configuration option log/file.
574 # Write error and debug log messages to a file specified here.
575 # This configuration option does not have a default value defined.
577 # Configuration option log/overwrite.
578 # Overwrite the log file each time the program is run.
581 # Configuration option log/level.
582 # The level of log messages that are sent to the log file or syslog.
583 # There are 6 syslog-like log levels currently in use: 2 to 7 inclusive.
584 # 7 is the most verbose (LOG_DEBUG).
587 # Configuration option log/indent.
588 # Indent messages according to their severity.
591 # Configuration option log/command_names.
592 # Display the command name on each line of output.
595 # Configuration option log/prefix.
596 # A prefix to use before the log message text.
597 # (After the command name, if selected).
598 # Two spaces allows you to see/grep the severity of each message.
599 # To make the messages look similar to the original LVM tools use:
600 # indent = 0, command_names = 1, prefix = " -- "
603 # Configuration option log/activation.
604 # Log messages during activation.
605 # Don't use this in low memory situations (can deadlock).
608 # Configuration option log/debug_classes.
609 # Select log messages by class.
610 # Some debugging messages are assigned to a class and only appear in
611 # debug output if the class is listed here. Classes currently
612 # available: memory, devices, activation, allocation, lvmetad,
613 # metadata, cache, locking, lvmpolld. Use "all" to see everything.
614 debug_classes = [ "memory", "devices", "activation", "allocation", "lvmetad", "metadata", "cache", "locking", "lvmpolld", "dbus" ]
617 # Configuration section backup.
618 # How LVM metadata is backed up and archived.
619 # In LVM, a 'backup' is a copy of the metadata for the current system,
620 # and an 'archive' contains old metadata configurations. They are
621 # stored in a human readable text format.
624 # Configuration option backup/backup.
625 # Maintain a backup of the current metadata configuration.
626 # Think very hard before turning this off!
629 # Configuration option backup/backup_dir.
630 # Location of the metadata backup files.
631 # Remember to back up this directory regularly!
632 backup_dir = "/etc/lvm/backup"
634 # Configuration option backup/archive.
635 # Maintain an archive of old metadata configurations.
636 # Think very hard before turning this off.
639 # Configuration option backup/archive_dir.
640 # Location of the metdata archive files.
641 # Remember to back up this directory regularly!
642 archive_dir = "/etc/lvm/archive"
644 # Configuration option backup/retain_min.
645 # Minimum number of archives to keep.
648 # Configuration option backup/retain_days.
649 # Minimum number of days to keep archive files.
653 # Configuration section shell.
654 # Settings for running LVM in shell (readline) mode.
657 # Configuration option shell/history_size.
658 # Number of lines of history to store in ~/.lvm_history.
662 # Configuration section global.
663 # Miscellaneous global LVM settings.
666 # Configuration option global/umask.
667 # The file creation mask for any files and directories created.
668 # Interpreted as octal if the first digit is zero.
671 # Configuration option global/test.
672 # No on-disk metadata changes will be made in test mode.
673 # Equivalent to having the -t option on every command.
676 # Configuration option global/units.
677 # Default value for --units argument.
680 # Configuration option global/si_unit_consistency.
681 # Distinguish between powers of 1024 and 1000 bytes.
682 # The LVM commands distinguish between powers of 1024 bytes,
683 # e.g. KiB, MiB, GiB, and powers of 1000 bytes, e.g. KB, MB, GB.
684 # If scripts depend on the old behaviour, disable this setting
685 # temporarily until they are updated.
686 si_unit_consistency = 1
688 # Configuration option global/suffix.
689 # Display unit suffix for sizes.
690 # This setting has no effect if the units are in human-readable form
691 # (global/units = "h") in which case the suffix is always displayed.
694 # Configuration option global/activation.
695 # Enable/disable communication with the kernel device-mapper.
696 # Disable to use the tools to manipulate LVM metadata without
697 # activating any logical volumes. If the device-mapper driver
698 # is not present in the kernel, disabling this should suppress
699 # the error messages.
702 # Configuration option global/fallback_to_lvm1.
703 # Try running LVM1 tools if LVM cannot communicate with DM.
704 # This option only applies to 2.4 kernels and is provided to help
705 # switch between device-mapper kernels and LVM1 kernels. The LVM1
706 # tools need to be installed with .lvm1 suffices, e.g. vgscan.lvm1.
707 # They will stop working once the lvm2 on-disk metadata format is used.
708 # This configuration option has an automatic default value.
709 # fallback_to_lvm1 = 0
711 # Configuration option global/format.
712 # The default metadata format that commands should use.
713 # The -M 1|2 option overrides this setting.
719 # This configuration option has an automatic default value.
722 # Configuration option global/format_libraries.
723 # Shared libraries that process different metadata formats.
724 # If support for LVM1 metadata was compiled as a shared library use
725 # format_libraries = "liblvm2format1.so"
726 # This configuration option does not have a default value defined.
728 # Configuration option global/segment_libraries.
729 # This configuration option does not have a default value defined.
731 # Configuration option global/proc.
732 # Location of proc filesystem.
733 # This configuration option is advanced.
736 # Configuration option global/etc.
737 # Location of /etc system configuration directory.
740 # Configuration option global/locking_type.
741 # Type of locking to use.
745 # Turns off locking. Warning: this risks metadata corruption if
746 # commands run concurrently.
748 # LVM uses local file-based locking, the standard mode.
750 # LVM uses the external shared library locking_library.
752 # LVM uses built-in clustered locking with clvmd.
753 # This is incompatible with lvmetad. If use_lvmetad is enabled,
754 # LVM prints a warning and disables lvmetad use.
756 # LVM uses read-only locking which forbids any operations that
757 # might change metadata.
759 # Offers dummy locking for tools that do not need any locks.
760 # You should not need to set this directly; the tools will select
761 # when to use it instead of the configured locking_type.
762 # Do not use lvmetad or the kernel device-mapper driver with this
763 # locking type. It is used by the --readonly option that offers
764 # read-only access to Volume Group metadata that cannot be locked
765 # safely because it belongs to an inaccessible domain and might be
766 # in use, for example a virtual machine image or a disk that is
767 # shared by a clustered machine.
771 # Configuration option global/wait_for_locks.
772 # When disabled, fail if a lock request would block.
775 # Configuration option global/fallback_to_clustered_locking.
776 # Attempt to use built-in cluster locking if locking_type 2 fails.
777 # If using external locking (type 2) and initialisation fails, with
778 # this enabled, an attempt will be made to use the built-in clustered
779 # locking. Disable this if using a customised locking_library.
780 fallback_to_clustered_locking = 1
782 # Configuration option global/fallback_to_local_locking.
783 # Use locking_type 1 (local) if locking_type 2 or 3 fail.
784 # If an attempt to initialise type 2 or type 3 locking failed, perhaps
785 # because cluster components such as clvmd are not running, with this
786 # enabled, an attempt will be made to use local file-based locking
787 # (type 1). If this succeeds, only commands against local VGs will
788 # proceed. VGs marked as clustered will be ignored.
789 fallback_to_local_locking = 1
791 # Configuration option global/locking_dir.
792 # Directory to use for LVM command file locks.
793 # Local non-LV directory that holds file-based locks while commands are
794 # in progress. A directory like /tmp that may get wiped on reboot is OK.
795 locking_dir = "/run/lock/lvm"
797 # Configuration option global/prioritise_write_locks.
798 # Allow quicker VG write access during high volume read access.
799 # When there are competing read-only and read-write access requests for
800 # a volume group's metadata, instead of always granting the read-only
801 # requests immediately, delay them to allow the read-write requests to
802 # be serviced. Without this setting, write access may be stalled by a
803 # high volume of read-only requests. This option only affects
804 # locking_type 1 viz. local file-based locking.
805 prioritise_write_locks = 1
807 # Configuration option global/library_dir.
808 # Search this directory first for shared libraries.
809 # This configuration option does not have a default value defined.
811 # Configuration option global/locking_library.
812 # The external locking library to use for locking_type 2.
813 # This configuration option has an automatic default value.
814 # locking_library = "liblvm2clusterlock.so"
816 # Configuration option global/abort_on_internal_errors.
817 # Abort a command that encounters an internal error.
818 # Treat any internal errors as fatal errors, aborting the process that
819 # encountered the internal error. Please only enable for debugging.
820 abort_on_internal_errors = 0
822 # Configuration option global/detect_internal_vg_cache_corruption.
823 # Internal verification of VG structures.
824 # Check if CRC matches when a parsed VG is used multiple times. This
825 # is useful to catch unexpected changes to cached VG structures.
826 # Please only enable for debugging.
827 detect_internal_vg_cache_corruption = 0
829 # Configuration option global/metadata_read_only.
830 # No operations that change on-disk metadata are permitted.
831 # Additionally, read-only commands that encounter metadata in need of
832 # repair will still be allowed to proceed exactly as if the repair had
833 # been performed (except for the unchanged vg_seqno). Inappropriate
834 # use could mess up your system, so seek advice first!
835 metadata_read_only = 0
837 # Configuration option global/mirror_segtype_default.
838 # The segment type used by the short mirroring option -m.
839 # The --type mirror|raid1 option overrides this setting.
843 # The original RAID1 implementation from LVM/DM. It is
844 # characterized by a flexible log solution (core, disk, mirrored),
845 # and by the necessity to block I/O while handling a failure.
846 # There is an inherent race in the dmeventd failure handling logic
847 # with snapshots of devices using this type of RAID1 that in the
848 # worst case could cause a deadlock. (Also see
849 # devices/ignore_lvm_mirrors.)
851 # This is a newer RAID1 implementation using the MD RAID1
852 # personality through device-mapper. It is characterized by a
853 # lack of log options. (A log is always allocated for every
854 # device and they are placed on the same device as the image,
855 # so no separate devices are required.) This mirror
856 # implementation does not require I/O to be blocked while
857 # handling a failure. This mirror implementation is not
858 # cluster-aware and cannot be used in a shared (active/active)
859 # fashion in a cluster.
861 mirror_segtype_default = "raid1"
863 # Configuration option global/raid10_segtype_default.
864 # The segment type used by the -i -m combination.
865 # The --type raid10|mirror option overrides this setting.
866 # The --stripes/-i and --mirrors/-m options can both be specified
867 # during the creation of a logical volume to use both striping and
868 # mirroring for the LV. There are two different implementations.
872 # LVM uses MD's RAID10 personality through DM. This is the
875 # LVM layers the 'mirror' and 'stripe' segment types. The layering
876 # is done by creating a mirror LV on top of striped sub-LVs,
877 # effectively creating a RAID 0+1 array. The layering is suboptimal
878 # in terms of providing redundancy and performance.
880 raid10_segtype_default = "raid10"
882 # Configuration option global/sparse_segtype_default.
883 # The segment type used by the -V -L combination.
884 # The --type snapshot|thin option overrides this setting.
885 # The combination of -V and -L options creates a sparse LV. There are
886 # two different implementations.
890 # The original snapshot implementation from LVM/DM. It uses an old
891 # snapshot that mixes data and metadata within a single COW
892 # storage volume and performs poorly when the size of stored data
893 # passes hundreds of MB.
895 # A newer implementation that uses thin provisioning. It has a
896 # bigger minimal chunk size (64KiB) and uses a separate volume for
897 # metadata. It has better performance, especially when more data
898 # is used. It also supports full snapshots.
900 sparse_segtype_default = "thin"
902 # Configuration option global/lvdisplay_shows_full_device_path.
903 # Enable this to reinstate the previous lvdisplay name format.
904 # The default format for displaying LV names in lvdisplay was changed
905 # in version 2.02.89 to show the LV name and path separately.
906 # Previously this was always shown as /dev/vgname/lvname even when that
907 # was never a valid path in the /dev filesystem.
908 # This configuration option has an automatic default value.
909 # lvdisplay_shows_full_device_path = 0
911 # Configuration option global/use_lvmetad.
912 # Use lvmetad to cache metadata and reduce disk scanning.
913 # When enabled (and running), lvmetad provides LVM commands with VG
914 # metadata and PV state. LVM commands then avoid reading this
915 # information from disks which can be slow. When disabled (or not
916 # running), LVM commands fall back to scanning disks to obtain VG
917 # metadata. lvmetad is kept updated via udev rules which must be set
918 # up for LVM to work correctly. (The udev rules should be installed
919 # by default.) Without a proper udev setup, changes in the system's
920 # block device configuration will be unknown to LVM, and ignored
921 # until a manual 'pvscan --cache' is run. If lvmetad was running
922 # while use_lvmetad was disabled, it must be stopped, use_lvmetad
923 # enabled, and then started. When using lvmetad, LV activation is
924 # switched to an automatic, event-based mode. In this mode, LVs are
925 # activated based on incoming udev events that inform lvmetad when
926 # PVs appear on the system. When a VG is complete (all PVs present),
927 # it is auto-activated. The auto_activation_volume_list setting
928 # controls which LVs are auto-activated (all by default.)
929 # When lvmetad is updated (automatically by udev events, or directly
930 # by pvscan --cache), devices/filter is ignored and all devices are
931 # scanned by default. lvmetad always keeps unfiltered information
932 # which is provided to LVM commands. Each LVM command then filters
933 # based on devices/filter. This does not apply to other, non-regexp,
934 # filtering settings: component filters such as multipath and MD
935 # are checked during pvscan --cache. To filter a device and prevent
936 # scanning from the LVM system entirely, including lvmetad, use
937 # devices/global_filter.
940 # Configuration option global/lvmetad_update_wait_time.
941 # The number of seconds a command will wait for lvmetad update to finish.
942 # After waiting for this period, a command will not use lvmetad, and
943 # will revert to disk scanning.
944 # This configuration option has an automatic default value.
945 # lvmetad_update_wait_time = 10
947 # Configuration option global/use_lvmlockd.
948 # Use lvmlockd for locking among hosts using LVM on shared storage.
949 # Applicable only if LVM is compiled with lockd support in which
950 # case there is also lvmlockd(8) man page available for more
954 # Configuration option global/lvmlockd_lock_retries.
955 # Retry lvmlockd lock requests this many times.
956 # Applicable only if LVM is compiled with lockd support
957 # This configuration option has an automatic default value.
958 # lvmlockd_lock_retries = 3
960 # Configuration option global/sanlock_lv_extend.
961 # Size in MiB to extend the internal LV holding sanlock locks.
962 # The internal LV holds locks for each LV in the VG, and after enough
963 # LVs have been created, the internal LV needs to be extended. lvcreate
964 # will automatically extend the internal LV when needed by the amount
965 # specified here. Setting this to 0 disables the automatic extension
966 # and can cause lvcreate to fail. Applicable only if LVM is compiled
968 # This configuration option has an automatic default value.
969 # sanlock_lv_extend = 256
971 # Configuration option global/thin_check_executable.
972 # The full path to the thin_check command.
973 # LVM uses this command to check that a thin metadata device is in a
974 # usable state. When a thin pool is activated and after it is
975 # deactivated, this command is run. Activation will only proceed if
976 # the command has an exit status of 0. Set to "" to skip this check.
977 # (Not recommended.) Also see thin_check_options.
978 # (See package device-mapper-persistent-data or thin-provisioning-tools)
979 # This configuration option has an automatic default value.
980 # thin_check_executable = "/usr/sbin/thin_check"
982 # Configuration option global/thin_dump_executable.
983 # The full path to the thin_dump command.
984 # LVM uses this command to dump thin pool metadata.
985 # (See package device-mapper-persistent-data or thin-provisioning-tools)
986 # This configuration option has an automatic default value.
987 # thin_dump_executable = "/usr/sbin/thin_dump"
989 # Configuration option global/thin_repair_executable.
990 # The full path to the thin_repair command.
991 # LVM uses this command to repair a thin metadata device if it is in
992 # an unusable state. Also see thin_repair_options.
993 # (See package device-mapper-persistent-data or thin-provisioning-tools)
994 # This configuration option has an automatic default value.
995 # thin_repair_executable = "/usr/sbin/thin_repair"
997 # Configuration option global/thin_check_options.
998 # List of options passed to the thin_check command.
999 # With thin_check version 2.1 or newer you can add the option
1000 # --ignore-non-fatal-errors to let it pass through ignorable errors
1001 # and fix them later. With thin_check version 3.2 or newer you should
1002 # include the option --clear-needs-check-flag.
1003 # This configuration option has an automatic default value.
1004 # thin_check_options = [ "-q", "--clear-needs-check-flag" ]
1006 # Configuration option global/thin_repair_options.
1007 # List of options passed to the thin_repair command.
1008 # This configuration option has an automatic default value.
1009 # thin_repair_options = [ "" ]
1011 # Configuration option global/thin_disabled_features.
1012 # Features to not use in the thin driver.
1013 # This can be helpful for testing, or to avoid using a feature that is
1014 # causing problems. Features include: block_size, discards,
1015 # discards_non_power_2, external_origin, metadata_resize,
1016 # external_origin_extend, error_if_no_space.
1019 # thin_disabled_features = [ "discards", "block_size" ]
1021 # This configuration option does not have a default value defined.
1023 # Configuration option global/cache_disabled_features.
1024 # Features to not use in the cache driver.
1025 # This can be helpful for testing, or to avoid using a feature that is
1026 # causing problems. Features include: policy_mq, policy_smq.
1029 # cache_disabled_features = [ "policy_smq" ]
1031 # This configuration option does not have a default value defined.
1033 # Configuration option global/cache_check_executable.
1034 # The full path to the cache_check command.
1035 # LVM uses this command to check that a cache metadata device is in a
1036 # usable state. When a cached LV is activated and after it is
1037 # deactivated, this command is run. Activation will only proceed if the
1038 # command has an exit status of 0. Set to "" to skip this check.
1039 # (Not recommended.) Also see cache_check_options.
1040 # (See package device-mapper-persistent-data or thin-provisioning-tools)
1041 # This configuration option has an automatic default value.
1042 # cache_check_executable = "/usr/sbin/cache_check"
1044 # Configuration option global/cache_dump_executable.
1045 # The full path to the cache_dump command.
1046 # LVM uses this command to dump cache pool metadata.
1047 # (See package device-mapper-persistent-data or thin-provisioning-tools)
1048 # This configuration option has an automatic default value.
1049 # cache_dump_executable = "/usr/sbin/cache_dump"
1051 # Configuration option global/cache_repair_executable.
1052 # The full path to the cache_repair command.
1053 # LVM uses this command to repair a cache metadata device if it is in
1054 # an unusable state. Also see cache_repair_options.
1055 # (See package device-mapper-persistent-data or thin-provisioning-tools)
1056 # This configuration option has an automatic default value.
1057 # cache_repair_executable = "/usr/sbin/cache_repair"
1059 # Configuration option global/cache_check_options.
1060 # List of options passed to the cache_check command.
1061 # With cache_check version 5.0 or newer you should include the option
1062 # --clear-needs-check-flag.
1063 # This configuration option has an automatic default value.
1064 # cache_check_options = [ "-q", "--clear-needs-check-flag" ]
1066 # Configuration option global/cache_repair_options.
1067 # List of options passed to the cache_repair command.
1068 # This configuration option has an automatic default value.
1069 # cache_repair_options = [ "" ]
1071 # Configuration option global/system_id_source.
1072 # The method LVM uses to set the local system ID.
1073 # Volume Groups can also be given a system ID (by vgcreate, vgchange,
1074 # or vgimport.) A VG on shared storage devices is accessible only to
1075 # the host with a matching system ID. See 'man lvmsystemid' for
1076 # information on limitations and correct usage.
1080 # The host has no system ID.
1082 # Obtain the system ID from the system_id setting in the 'local'
1083 # section of an lvm configuration file, e.g. lvmlocal.conf.
1085 # Set the system ID from the hostname (uname) of the system.
1086 # System IDs beginning localhost are not permitted.
1088 # Use the contents of the machine-id file to set the system ID.
1089 # Some systems create this file at installation time.
1090 # See 'man machine-id' and global/etc.
1092 # Use the contents of another file (system_id_file) to set the
1095 system_id_source = "none"
1097 # Configuration option global/system_id_file.
1098 # The full path to the file containing a system ID.
1099 # This is used when system_id_source is set to 'file'.
1100 # Comments starting with the character # are ignored.
1101 # This configuration option does not have a default value defined.
1103 # Configuration option global/use_lvmpolld.
1104 # Use lvmpolld to supervise long running LVM commands.
1105 # When enabled, control of long running LVM commands is transferred
1106 # from the original LVM command to the lvmpolld daemon. This allows
1107 # the operation to continue independent of the original LVM command.
1108 # After lvmpolld takes over, the LVM command displays the progress
1109 # of the ongoing operation. lvmpolld itself runs LVM commands to
1110 # manage the progress of ongoing operations. lvmpolld can be used as
1111 # a native systemd service, which allows it to be started on demand,
1112 # and to use its own control group. When this option is disabled, LVM
1113 # commands will supervise long running operations by forking themselves.
1114 # Applicable only if LVM is compiled with lvmpolld support.
1117 # Configuration option global/notify_dbus.
1118 # Enable D-Bus notification from LVM commands.
1119 # When enabled, an LVM command that changes PVs, changes VG metadata,
1120 # or changes the activation state of an LV will send a notification.
1124 # Configuration section activation.
1127 # Configuration option activation/checks.
1128 # Perform internal checks of libdevmapper operations.
1129 # Useful for debugging problems with activation. Some of the checks may
1130 # be expensive, so it's best to use this only when there seems to be a
1134 # Configuration option activation/udev_sync.
1135 # Use udev notifications to synchronize udev and LVM.
1136 # The --nodevsync option overrides this setting.
1137 # When disabled, LVM commands will not wait for notifications from
1138 # udev, but continue irrespective of any possible udev processing in
1139 # the background. Only use this if udev is not running or has rules
1140 # that ignore the devices LVM creates. If enabled when udev is not
1141 # running, and LVM processes are waiting for udev, run the command
1142 # 'dmsetup udevcomplete_all' to wake them up.
1145 # Configuration option activation/udev_rules.
1146 # Use udev rules to manage LV device nodes and symlinks.
1147 # When disabled, LVM will manage the device nodes and symlinks for
1148 # active LVs itself. Manual intervention may be required if this
1149 # setting is changed while LVs are active.
1152 # Configuration option activation/verify_udev_operations.
1153 # Use extra checks in LVM to verify udev operations.
1154 # This enables additional checks (and if necessary, repairs) on entries
1155 # in the device directory after udev has completed processing its
1156 # events. Useful for diagnosing problems with LVM/udev interactions.
1157 verify_udev_operations = 0
1159 # Configuration option activation/retry_deactivation.
1160 # Retry failed LV deactivation.
1161 # If LV deactivation fails, LVM will retry for a few seconds before
1162 # failing. This may happen because a process run from a quick udev rule
1163 # temporarily opened the device.
1164 retry_deactivation = 1
1166 # Configuration option activation/missing_stripe_filler.
1167 # Method to fill missing stripes when activating an incomplete LV.
1168 # Using 'error' will make inaccessible parts of the device return I/O
1169 # errors on access. You can instead use a device path, in which case,
1170 # that device will be used in place of missing stripes. Using anything
1171 # other than 'error' with mirrored or snapshotted volumes is likely to
1172 # result in data corruption.
1173 # This configuration option is advanced.
1174 missing_stripe_filler = "error"
1176 # Configuration option activation/use_linear_target.
1177 # Use the linear target to optimize single stripe LVs.
1178 # When disabled, the striped target is used. The linear target is an
1179 # optimised version of the striped target that only handles a single
1181 use_linear_target = 1
1183 # Configuration option activation/reserved_stack.
1184 # Stack size in KiB to reserve for use while devices are suspended.
1185 # Insufficent reserve risks I/O deadlock during device suspension.
1188 # Configuration option activation/reserved_memory.
1189 # Memory size in KiB to reserve for use while devices are suspended.
1190 # Insufficent reserve risks I/O deadlock during device suspension.
1191 reserved_memory = 8192
1193 # Configuration option activation/process_priority.
1194 # Nice value used while devices are suspended.
1195 # Use a high priority so that LVs are suspended
1196 # for the shortest possible time.
1197 process_priority = -18
1199 # Configuration option activation/volume_list.
1200 # Only LVs selected by this list are activated.
1201 # If this list is defined, an LV is only activated if it matches an
1202 # entry in this list. If this list is undefined, it imposes no limits
1203 # on LV activation (all are allowed).
1207 # The VG name is matched exactly and selects all LVs in the VG.
1209 # The VG name and LV name are matched exactly and selects the LV.
1211 # Selects an LV if the specified tag matches a tag set on the LV
1214 # Selects an LV if a tag defined on the host is also set on the LV
1215 # or VG. See tags/hosttags. If any host tags exist but volume_list
1216 # is not defined, a default single-entry list containing '@*'
1220 # volume_list = [ "vg1", "vg2/lvol1", "@tag1", "@*" ]
1222 # This configuration option does not have a default value defined.
1224 # Configuration option activation/auto_activation_volume_list.
1225 # Only LVs selected by this list are auto-activated.
1226 # This list works like volume_list, but it is used only by
1227 # auto-activation commands. It does not apply to direct activation
1228 # commands. If this list is defined, an LV is only auto-activated
1229 # if it matches an entry in this list. If this list is undefined, it
1230 # imposes no limits on LV auto-activation (all are allowed.) If this
1231 # list is defined and empty, i.e. "[]", then no LVs are selected for
1232 # auto-activation. An LV that is selected by this list for
1233 # auto-activation, must also be selected by volume_list (if defined)
1234 # before it is activated. Auto-activation is an activation command that
1235 # includes the 'a' argument: --activate ay or -a ay. The 'a' (auto)
1236 # argument for auto-activation is meant to be used by activation
1237 # commands that are run automatically by the system, as opposed to LVM
1238 # commands run directly by a user. A user may also use the 'a' flag
1239 # directly to perform auto-activation. Also see pvscan(8) for more
1240 # information about auto-activation.
1244 # The VG name is matched exactly and selects all LVs in the VG.
1246 # The VG name and LV name are matched exactly and selects the LV.
1248 # Selects an LV if the specified tag matches a tag set on the LV
1251 # Selects an LV if a tag defined on the host is also set on the LV
1252 # or VG. See tags/hosttags. If any host tags exist but volume_list
1253 # is not defined, a default single-entry list containing '@*'
1257 # auto_activation_volume_list = [ "vg1", "vg2/lvol1", "@tag1", "@*" ]
1259 # This configuration option does not have a default value defined.
1261 # Configuration option activation/read_only_volume_list.
1262 # LVs in this list are activated in read-only mode.
1263 # If this list is defined, each LV that is to be activated is checked
1264 # against this list, and if it matches, it is activated in read-only
1265 # mode. This overrides the permission setting stored in the metadata,
1266 # e.g. from --permission rw.
1270 # The VG name is matched exactly and selects all LVs in the VG.
1272 # The VG name and LV name are matched exactly and selects the LV.
1274 # Selects an LV if the specified tag matches a tag set on the LV
1277 # Selects an LV if a tag defined on the host is also set on the LV
1278 # or VG. See tags/hosttags. If any host tags exist but volume_list
1279 # is not defined, a default single-entry list containing '@*'
1283 # read_only_volume_list = [ "vg1", "vg2/lvol1", "@tag1", "@*" ]
1285 # This configuration option does not have a default value defined.
1287 # Configuration option activation/raid_region_size.
1288 # Size in KiB of each raid or mirror synchronization region.
1289 # For raid or mirror segment types, this is the amount of data that is
1290 # copied at once when initializing, or moved at once by pvmove.
1291 raid_region_size = 512
1293 # Configuration option activation/error_when_full.
1294 # Return errors if a thin pool runs out of space.
1295 # The --errorwhenfull option overrides this setting.
1296 # When enabled, writes to thin LVs immediately return an error if the
1297 # thin pool is out of data space. When disabled, writes to thin LVs
1298 # are queued if the thin pool is out of space, and processed when the
1299 # thin pool data space is extended. New thin pools are assigned the
1300 # behavior defined here.
1301 # This configuration option has an automatic default value.
1302 # error_when_full = 0
1304 # Configuration option activation/readahead.
1305 # Setting to use when there is no readahead setting in metadata.
1309 # Disable readahead.
1311 # Use default value chosen by kernel.
1315 # Configuration option activation/raid_fault_policy.
1316 # Defines how a device failure in a RAID LV is handled.
1317 # This includes LVs that have the following segment types:
1318 # raid1, raid4, raid5*, and raid6*.
1319 # If a device in the LV fails, the policy determines the steps
1320 # performed by dmeventd automatically, and the steps perfomed by the
1321 # manual command lvconvert --repair --use-policies.
1322 # Automatic handling requires dmeventd to be monitoring the LV.
1326 # Use the system log to warn the user that a device in the RAID LV
1327 # has failed. It is left to the user to run lvconvert --repair
1328 # manually to remove or replace the failed device. As long as the
1329 # number of failed devices does not exceed the redundancy of the LV
1330 # (1 device for raid4/5, 2 for raid6), the LV will remain usable.
1332 # Attempt to use any extra physical volumes in the VG as spares and
1333 # replace faulty devices.
1335 raid_fault_policy = "warn"
1337 # Configuration option activation/mirror_image_fault_policy.
1338 # Defines how a device failure in a 'mirror' LV is handled.
1339 # An LV with the 'mirror' segment type is composed of mirror images
1340 # (copies) and a mirror log. A disk log ensures that a mirror LV does
1341 # not need to be re-synced (all copies made the same) every time a
1342 # machine reboots or crashes. If a device in the LV fails, this policy
1343 # determines the steps perfomed by dmeventd automatically, and the steps
1344 # performed by the manual command lvconvert --repair --use-policies.
1345 # Automatic handling requires dmeventd to be monitoring the LV.
1349 # Simply remove the faulty device and run without it. If the log
1350 # device fails, the mirror would convert to using an in-memory log.
1351 # This means the mirror will not remember its sync status across
1352 # crashes/reboots and the entire mirror will be re-synced. If a
1353 # mirror image fails, the mirror will convert to a non-mirrored
1354 # device if there is only one remaining good copy.
1356 # Remove the faulty device and try to allocate space on a new
1357 # device to be a replacement for the failed device. Using this
1358 # policy for the log is fast and maintains the ability to remember
1359 # sync state through crashes/reboots. Using this policy for a
1360 # mirror device is slow, as it requires the mirror to resynchronize
1361 # the devices, but it will preserve the mirror characteristic of
1362 # the device. This policy acts like 'remove' if no suitable device
1363 # and space can be allocated for the replacement.
1365 # Not yet implemented. Useful to place the log device temporarily
1366 # on the same physical volume as one of the mirror images. This
1367 # policy is not recommended for mirror devices since it would break
1368 # the redundant nature of the mirror. This policy acts like
1369 # 'remove' if no suitable device and space can be allocated for the
1372 mirror_image_fault_policy = "remove"
1374 # Configuration option activation/mirror_log_fault_policy.
1375 # Defines how a device failure in a 'mirror' log LV is handled.
1376 # The mirror_image_fault_policy description for mirrored LVs also
1377 # applies to mirrored log LVs.
1378 mirror_log_fault_policy = "allocate"
1380 # Configuration option activation/snapshot_autoextend_threshold.
1381 # Auto-extend a snapshot when its usage exceeds this percent.
1382 # Setting this to 100 disables automatic extension.
1383 # The minimum value is 50 (a smaller value is treated as 50.)
1384 # Also see snapshot_autoextend_percent.
1385 # Automatic extension requires dmeventd to be monitoring the LV.
1388 # Using 70% autoextend threshold and 20% autoextend size, when a 1G
1389 # snapshot exceeds 700M, it is extended to 1.2G, and when it exceeds
1390 # 840M, it is extended to 1.44G:
1391 # snapshot_autoextend_threshold = 70
1393 snapshot_autoextend_threshold = 100
1395 # Configuration option activation/snapshot_autoextend_percent.
1396 # Auto-extending a snapshot adds this percent extra space.
1397 # The amount of additional space added to a snapshot is this
1398 # percent of its current size.
1401 # Using 70% autoextend threshold and 20% autoextend size, when a 1G
1402 # snapshot exceeds 700M, it is extended to 1.2G, and when it exceeds
1403 # 840M, it is extended to 1.44G:
1404 # snapshot_autoextend_percent = 20
1406 snapshot_autoextend_percent = 20
1408 # Configuration option activation/thin_pool_autoextend_threshold.
1409 # Auto-extend a thin pool when its usage exceeds this percent.
1410 # Setting this to 100 disables automatic extension.
1411 # The minimum value is 50 (a smaller value is treated as 50.)
1412 # Also see thin_pool_autoextend_percent.
1413 # Automatic extension requires dmeventd to be monitoring the LV.
1416 # Using 70% autoextend threshold and 20% autoextend size, when a 1G
1417 # thin pool exceeds 700M, it is extended to 1.2G, and when it exceeds
1418 # 840M, it is extended to 1.44G:
1419 # thin_pool_autoextend_threshold = 70
1421 thin_pool_autoextend_threshold = 100
1423 # Configuration option activation/thin_pool_autoextend_percent.
1424 # Auto-extending a thin pool adds this percent extra space.
1425 # The amount of additional space added to a thin pool is this
1426 # percent of its current size.
1429 # Using 70% autoextend threshold and 20% autoextend size, when a 1G
1430 # thin pool exceeds 700M, it is extended to 1.2G, and when it exceeds
1431 # 840M, it is extended to 1.44G:
1432 # thin_pool_autoextend_percent = 20
1434 thin_pool_autoextend_percent = 20
1436 # Configuration option activation/mlock_filter.
1437 # Do not mlock these memory areas.
1438 # While activating devices, I/O to devices being (re)configured is
1439 # suspended. As a precaution against deadlocks, LVM pins memory it is
1440 # using so it is not paged out, and will not require I/O to reread.
1441 # Groups of pages that are known not to be accessed during activation
1442 # do not need to be pinned into memory. Each string listed in this
1443 # setting is compared against each line in /proc/self/maps, and the
1444 # pages corresponding to lines that match are not pinned. On some
1445 # systems, locale-archive was found to make up over 80% of the memory
1446 # used by the process.
1449 # mlock_filter = [ "locale/locale-archive", "gconv/gconv-modules.cache" ]
1451 # This configuration option is advanced.
1452 # This configuration option does not have a default value defined.
1454 # Configuration option activation/use_mlockall.
1455 # Use the old behavior of mlockall to pin all memory.
1456 # Prior to version 2.02.62, LVM used mlockall() to pin the whole
1457 # process's memory while activating devices.
1460 # Configuration option activation/monitoring.
1461 # Monitor LVs that are activated.
1462 # The --ignoremonitoring option overrides this setting.
1463 # When enabled, LVM will ask dmeventd to monitor activated LVs.
1466 # Configuration option activation/polling_interval.
1467 # Check pvmove or lvconvert progress at this interval (seconds).
1468 # When pvmove or lvconvert must wait for the kernel to finish
1469 # synchronising or merging data, they check and report progress at
1470 # intervals of this number of seconds. If this is set to 0 and there
1471 # is only one thing to wait for, there are no progress reports, but
1472 # the process is awoken immediately once the operation is complete.
1473 polling_interval = 15
1475 # Configuration option activation/auto_set_activation_skip.
1476 # Set the activation skip flag on new thin snapshot LVs.
1477 # The --setactivationskip option overrides this setting.
1478 # An LV can have a persistent 'activation skip' flag. The flag causes
1479 # the LV to be skipped during normal activation. The lvchange/vgchange
1480 # -K option is required to activate LVs that have the activation skip
1481 # flag set. When this setting is enabled, the activation skip flag is
1482 # set on new thin snapshot LVs.
1483 # This configuration option has an automatic default value.
1484 # auto_set_activation_skip = 1
1486 # Configuration option activation/activation_mode.
1487 # How LVs with missing devices are activated.
1488 # The --activationmode option overrides this setting.
1492 # Only allow activation of an LV if all of the Physical Volumes it
1493 # uses are present. Other PVs in the Volume Group may be missing.
1495 # Like complete, but additionally RAID LVs of segment type raid1,
1496 # raid4, raid5, radid6 and raid10 will be activated if there is no
1497 # data loss, i.e. they have sufficient redundancy to present the
1498 # entire addressable range of the Logical Volume.
1500 # Allows the activation of any LV even if a missing or failed PV
1501 # could cause data loss with a portion of the LV inaccessible.
1502 # This setting should not normally be used, but may sometimes
1503 # assist with data recovery.
1505 activation_mode = "degraded"
1507 # Configuration option activation/lock_start_list.
1508 # Locking is started only for VGs selected by this list.
1509 # The rules are the same as those for volume_list.
1510 # This configuration option does not have a default value defined.
1512 # Configuration option activation/auto_lock_start_list.
1513 # Locking is auto-started only for VGs selected by this list.
1514 # The rules are the same as those for auto_activation_volume_list.
1515 # This configuration option does not have a default value defined.
1518 # Configuration section metadata.
1519 # This configuration section has an automatic default value.
1522 # Configuration option metadata/check_pv_device_sizes.
1523 # Check device sizes are not smaller than corresponding PV sizes.
1524 # If device size is less than corresponding PV size found in metadata,
1525 # there is always a risk of data loss. If this option is set, then LVM
1526 # issues a warning message each time it finds that the device size is
1527 # less than corresponding PV size. You should not disable this unless
1528 # you are absolutely sure about what you are doing!
1529 # This configuration option is advanced.
1530 # This configuration option has an automatic default value.
1531 # check_pv_device_sizes = 1
1533 # Configuration option metadata/record_lvs_history.
1534 # When enabled, LVM keeps history records about removed LVs in
1535 # metadata. The information that is recorded in metadata for
1536 # historical LVs is reduced when compared to original
1537 # information kept in metadata for live LVs. Currently, this
1538 # feature is supported for thin and thin snapshot LVs only.
1539 # This configuration option has an automatic default value.
1540 # record_lvs_history = 0
1542 # Configuration option metadata/lvs_history_retention_time.
1543 # Retention time in seconds after which a record about individual
1544 # historical logical volume is automatically destroyed.
1545 # A value of 0 disables this feature.
1546 # This configuration option has an automatic default value.
1547 # lvs_history_retention_time = 0
1549 # Configuration option metadata/pvmetadatacopies.
1550 # Number of copies of metadata to store on each PV.
1551 # The --pvmetadatacopies option overrides this setting.
1555 # Two copies of the VG metadata are stored on the PV, one at the
1556 # front of the PV, and one at the end.
1558 # One copy of VG metadata is stored at the front of the PV.
1560 # No copies of VG metadata are stored on the PV. This may be
1561 # useful for VGs containing large numbers of PVs.
1563 # This configuration option is advanced.
1564 # This configuration option has an automatic default value.
1565 # pvmetadatacopies = 1
1567 # Configuration option metadata/vgmetadatacopies.
1568 # Number of copies of metadata to maintain for each VG.
1569 # The --vgmetadatacopies option overrides this setting.
1570 # If set to a non-zero value, LVM automatically chooses which of the
1571 # available metadata areas to use to achieve the requested number of
1572 # copies of the VG metadata. If you set a value larger than the the
1573 # total number of metadata areas available, then metadata is stored in
1574 # them all. The value 0 (unmanaged) disables this automatic management
1575 # and allows you to control which metadata areas are used at the
1576 # individual PV level using pvchange --metadataignore y|n.
1577 # This configuration option has an automatic default value.
1578 # vgmetadatacopies = 0
1580 # Configuration option metadata/pvmetadatasize.
1581 # Approximate number of sectors to use for each metadata copy.
1582 # VGs with large numbers of PVs or LVs, or VGs containing complex LV
1583 # structures, may need additional space for VG metadata. The metadata
1584 # areas are treated as circular buffers, so unused space becomes filled
1585 # with an archive of the most recent previous versions of the metadata.
1586 # This configuration option has an automatic default value.
1587 # pvmetadatasize = 255
1589 # Configuration option metadata/pvmetadataignore.
1590 # Ignore metadata areas on a new PV.
1591 # The --metadataignore option overrides this setting.
1592 # If metadata areas on a PV are ignored, LVM will not store metadata
1594 # This configuration option is advanced.
1595 # This configuration option has an automatic default value.
1596 # pvmetadataignore = 0
1598 # Configuration option metadata/stripesize.
1599 # This configuration option is advanced.
1600 # This configuration option has an automatic default value.
1603 # Configuration option metadata/dirs.
1604 # Directories holding live copies of text format metadata.
1605 # These directories must not be on logical volumes!
1606 # It's possible to use LVM with a couple of directories here,
1607 # preferably on different (non-LV) filesystems, and with no other
1608 # on-disk metadata (pvmetadatacopies = 0). Or this can be in addition
1609 # to on-disk metadata areas. The feature was originally added to
1610 # simplify testing and is not supported under low memory situations -
1611 # the machine could lock up. Never edit any files in these directories
1612 # by hand unless you are absolutely sure you know what you are doing!
1613 # Use the supplied toolset to make changes (e.g. vgcfgrestore).
1616 # dirs = [ "/etc/lvm/metadata", "/mnt/disk2/lvm/metadata2" ]
1618 # This configuration option is advanced.
1619 # This configuration option does not have a default value defined.
1622 # Configuration section report.
1623 # LVM report command output formatting.
1624 # This configuration section has an automatic default value.
1627 # Configuration option report/output_format.
1628 # Format of LVM command's report output.
1629 # If there is more than one report per command, then the format
1630 # is applied for all reports. You can also change output format
1631 # directly on command line using --reportformat option which
1632 # has precedence over log/output_format setting.
1635 # Original format with columns and rows. If there is more than
1636 # one report per command, each report is prefixed with report's
1637 # name for identification.
1640 # This configuration option has an automatic default value.
1641 # output_format = "basic"
1643 # Configuration option report/compact_output.
1644 # Do not print empty values for all report fields.
1645 # If enabled, all fields that don't have a value set for any of the
1646 # rows reported are skipped and not printed. Compact output is
1647 # applicable only if report/buffered is enabled. If you need to
1648 # compact only specified fields, use compact_output=0 and define
1649 # report/compact_output_cols configuration setting instead.
1650 # This configuration option has an automatic default value.
1651 # compact_output = 0
1653 # Configuration option report/compact_output_cols.
1654 # Do not print empty values for specified report fields.
1655 # If defined, specified fields that don't have a value set for any
1656 # of the rows reported are skipped and not printed. Compact output
1657 # is applicable only if report/buffered is enabled. If you need to
1658 # compact all fields, use compact_output=1 instead in which case
1659 # the compact_output_cols setting is then ignored.
1660 # This configuration option has an automatic default value.
1661 # compact_output_cols = ""
1663 # Configuration option report/aligned.
1664 # Align columns in report output.
1665 # This configuration option has an automatic default value.
1668 # Configuration option report/buffered.
1669 # Buffer report output.
1670 # When buffered reporting is used, the report's content is appended
1671 # incrementally to include each object being reported until the report
1672 # is flushed to output which normally happens at the end of command
1673 # execution. Otherwise, if buffering is not used, each object is
1674 # reported as soon as its processing is finished.
1675 # This configuration option has an automatic default value.
1678 # Configuration option report/headings.
1679 # Show headings for columns on report.
1680 # This configuration option has an automatic default value.
1683 # Configuration option report/separator.
1684 # A separator to use on report after each field.
1685 # This configuration option has an automatic default value.
1688 # Configuration option report/list_item_separator.
1689 # A separator to use for list items when reported.
1690 # This configuration option has an automatic default value.
1691 # list_item_separator = ","
1693 # Configuration option report/prefixes.
1694 # Use a field name prefix for each field reported.
1695 # This configuration option has an automatic default value.
1698 # Configuration option report/quoted.
1699 # Quote field values when using field name prefixes.
1700 # This configuration option has an automatic default value.
1703 # Configuration option report/columns_as_rows.
1704 # Output each column as a row.
1705 # If set, this also implies report/prefixes=1.
1706 # This configuration option has an automatic default value.
1707 # columns_as_rows = 0
1709 # Configuration option report/binary_values_as_numeric.
1710 # Use binary values 0 or 1 instead of descriptive literal values.
1711 # For columns that have exactly two valid values to report
1712 # (not counting the 'unknown' value which denotes that the
1713 # value could not be determined).
1714 # This configuration option has an automatic default value.
1715 # binary_values_as_numeric = 0
1717 # Configuration option report/time_format.
1718 # Set time format for fields reporting time values.
1719 # Format specification is a string which may contain special character
1720 # sequences and ordinary character sequences. Ordinary character
1721 # sequences are copied verbatim. Each special character sequence is
1722 # introduced by the '%' character and such sequence is then
1723 # substituted with a value as described below.
1727 # The abbreviated name of the day of the week according to the
1730 # The full name of the day of the week according to the current
1733 # The abbreviated month name according to the current locale.
1735 # The full month name according to the current locale.
1737 # The preferred date and time representation for the current
1740 # The century number (year/100) as a 2-digit integer. (alt E)
1742 # The day of the month as a decimal number (range 01 to 31).
1745 # Equivalent to %m/%d/%y. (For Americans only. Americans should
1746 # note that in other countries%d/%m/%y is rather common. This
1747 # means that in international context this format is ambiguous and
1748 # should not be used.
1750 # Like %d, the day of the month as a decimal number, but a leading
1751 # zero is replaced by a space. (alt O)
1753 # Modifier: use alternative local-dependent representation if
1756 # Equivalent to %Y-%m-%d (the ISO 8601 date format).
1758 # The ISO 8601 week-based year with century as adecimal number.
1759 # The 4-digit year corresponding to the ISO week number (see %V).
1760 # This has the same format and value as %Y, except that if the
1761 # ISO week number belongs to the previous or next year, that year
1764 # Like %G, but without century, that is, with a 2-digit year
1769 # The hour as a decimal number using a 24-hour clock
1770 # (range 00 to 23). (alt O)
1772 # The hour as a decimal number using a 12-hour clock
1773 # (range 01 to 12). (alt O)
1775 # The day of the year as a decimal number (range 001 to 366).
1777 # The hour (24-hour clock) as a decimal number (range 0 to 23);
1778 # single digits are preceded by a blank. (See also %H.)
1780 # The hour (12-hour clock) as a decimal number (range 1 to 12);
1781 # single digits are preceded by a blank. (See also %I.)
1783 # The month as a decimal number (range 01 to 12). (alt O)
1785 # The minute as a decimal number (range 00 to 59). (alt O)
1787 # Modifier: use alternative numeric symbols.
1789 # Either "AM" or "PM" according to the given time value,
1790 # or the corresponding strings for the current locale. Noon is
1791 # treated as "PM" and midnight as "AM".
1793 # Like %p but in lowercase: "am" or "pm" or a corresponding
1794 # string for the current locale.
1796 # The time in a.m. or p.m. notation. In the POSIX locale this is
1797 # equivalent to %I:%M:%S %p.
1799 # The time in 24-hour notation (%H:%M). For a version including
1800 # the seconds, see %T below.
1802 # The number of seconds since the Epoch,
1803 # 1970-01-01 00:00:00 +0000 (UTC)
1805 # The second as a decimal number (range 00 to 60). (The range is
1806 # up to 60 to allow for occasional leap seconds.) (alt O)
1810 # The time in 24-hour notation (%H:%M:%S).
1812 # The day of the week as a decimal, range 1 to 7, Monday being 1.
1813 # See also %w. (alt O)
1815 # The week number of the current year as a decimal number,
1816 # range 00 to 53, starting with the first Sunday as the first
1817 # day of week 01. See also %V and %W. (alt O)
1819 # The ISO 8601 week number of the current year as a decimal number,
1820 # range 01 to 53, where week 1 is the first week that has at least
1821 # 4 days in the new year. See also %U and %W. (alt O)
1823 # The day of the week as a decimal, range 0 to 6, Sunday being 0.
1824 # See also %u. (alt O)
1826 # The week number of the current year as a decimal number,
1827 # range 00 to 53, starting with the first Monday as the first day
1828 # of week 01. (alt O)
1830 # The preferred date representation for the current locale without
1833 # The preferred time representation for the current locale without
1836 # The year as a decimal number without a century (range 00 to 99).
1839 # The year as a decimal number including the century. (alt E)
1841 # The +hhmm or -hhmm numeric timezone (that is, the hour and minute
1844 # The timezone name or abbreviation.
1846 # A literal '%' character.
1848 # This configuration option has an automatic default value.
1849 # time_format = "%Y-%m-%d %T %z"
1851 # Configuration option report/devtypes_sort.
1852 # List of columns to sort by when reporting 'lvm devtypes' command.
1853 # See 'lvm devtypes -o help' for the list of possible fields.
1854 # This configuration option has an automatic default value.
1855 # devtypes_sort = "devtype_name"
1857 # Configuration option report/devtypes_cols.
1858 # List of columns to report for 'lvm devtypes' command.
1859 # See 'lvm devtypes -o help' for the list of possible fields.
1860 # This configuration option has an automatic default value.
1861 # devtypes_cols = "devtype_name,devtype_max_partitions,devtype_description"
1863 # Configuration option report/devtypes_cols_verbose.
1864 # List of columns to report for 'lvm devtypes' command in verbose mode.
1865 # See 'lvm devtypes -o help' for the list of possible fields.
1866 # This configuration option has an automatic default value.
1867 # devtypes_cols_verbose = "devtype_name,devtype_max_partitions,devtype_description"
1869 # Configuration option report/lvs_sort.
1870 # List of columns to sort by when reporting 'lvs' command.
1871 # See 'lvs -o help' for the list of possible fields.
1872 # This configuration option has an automatic default value.
1873 # lvs_sort = "vg_name,lv_name"
1875 # Configuration option report/lvs_cols.
1876 # List of columns to report for 'lvs' command.
1877 # See 'lvs -o help' for the list of possible fields.
1878 # This configuration option has an automatic default value.
1879 # lvs_cols = "lv_name,vg_name,lv_attr,lv_size,pool_lv,origin,data_percent,metadata_percent,move_pv,mirror_log,copy_percent,convert_lv"
1881 # Configuration option report/lvs_cols_verbose.
1882 # List of columns to report for 'lvs' command in verbose mode.
1883 # See 'lvs -o help' for the list of possible fields.
1884 # This configuration option has an automatic default value.
1885 # lvs_cols_verbose = "lv_name,vg_name,seg_count,lv_attr,lv_size,lv_major,lv_minor,lv_kernel_major,lv_kernel_minor,pool_lv,origin,data_percent,metadata_percent,move_pv,copy_percent,mirror_log,convert_lv,lv_uuid,lv_profile"
1887 # Configuration option report/vgs_sort.
1888 # List of columns to sort by when reporting 'vgs' command.
1889 # See 'vgs -o help' for the list of possible fields.
1890 # This configuration option has an automatic default value.
1891 # vgs_sort = "vg_name"
1893 # Configuration option report/vgs_cols.
1894 # List of columns to report for 'vgs' command.
1895 # See 'vgs -o help' for the list of possible fields.
1896 # This configuration option has an automatic default value.
1897 # vgs_cols = "vg_name,pv_count,lv_count,snap_count,vg_attr,vg_size,vg_free"
1899 # Configuration option report/vgs_cols_verbose.
1900 # List of columns to report for 'vgs' command in verbose mode.
1901 # See 'vgs -o help' for the list of possible fields.
1902 # This configuration option has an automatic default value.
1903 # vgs_cols_verbose = "vg_name,vg_attr,vg_extent_size,pv_count,lv_count,snap_count,vg_size,vg_free,vg_uuid,vg_profile"
1905 # Configuration option report/pvs_sort.
1906 # List of columns to sort by when reporting 'pvs' command.
1907 # See 'pvs -o help' for the list of possible fields.
1908 # This configuration option has an automatic default value.
1909 # pvs_sort = "pv_name"
1911 # Configuration option report/pvs_cols.
1912 # List of columns to report for 'pvs' command.
1913 # See 'pvs -o help' for the list of possible fields.
1914 # This configuration option has an automatic default value.
1915 # pvs_cols = "pv_name,vg_name,pv_fmt,pv_attr,pv_size,pv_free"
1917 # Configuration option report/pvs_cols_verbose.
1918 # List of columns to report for 'pvs' command in verbose mode.
1919 # See 'pvs -o help' for the list of possible fields.
1920 # This configuration option has an automatic default value.
1921 # pvs_cols_verbose = "pv_name,vg_name,pv_fmt,pv_attr,pv_size,pv_free,dev_size,pv_uuid"
1923 # Configuration option report/segs_sort.
1924 # List of columns to sort by when reporting 'lvs --segments' command.
1925 # See 'lvs --segments -o help' for the list of possible fields.
1926 # This configuration option has an automatic default value.
1927 # segs_sort = "vg_name,lv_name,seg_start"
1929 # Configuration option report/segs_cols.
1930 # List of columns to report for 'lvs --segments' command.
1931 # See 'lvs --segments -o help' for the list of possible fields.
1932 # This configuration option has an automatic default value.
1933 # segs_cols = "lv_name,vg_name,lv_attr,stripes,segtype,seg_size"
1935 # Configuration option report/segs_cols_verbose.
1936 # List of columns to report for 'lvs --segments' command in verbose mode.
1937 # See 'lvs --segments -o help' for the list of possible fields.
1938 # This configuration option has an automatic default value.
1939 # segs_cols_verbose = "lv_name,vg_name,lv_attr,seg_start,seg_size,stripes,segtype,stripesize,chunksize"
1941 # Configuration option report/pvsegs_sort.
1942 # List of columns to sort by when reporting 'pvs --segments' command.
1943 # See 'pvs --segments -o help' for the list of possible fields.
1944 # This configuration option has an automatic default value.
1945 # pvsegs_sort = "pv_name,pvseg_start"
1947 # Configuration option report/pvsegs_cols.
1948 # List of columns to sort by when reporting 'pvs --segments' command.
1949 # See 'pvs --segments -o help' for the list of possible fields.
1950 # This configuration option has an automatic default value.
1951 # pvsegs_cols = "pv_name,vg_name,pv_fmt,pv_attr,pv_size,pv_free,pvseg_start,pvseg_size"
1953 # Configuration option report/pvsegs_cols_verbose.
1954 # List of columns to sort by when reporting 'pvs --segments' command in verbose mode.
1955 # See 'pvs --segments -o help' for the list of possible fields.
1956 # This configuration option has an automatic default value.
1957 # pvsegs_cols_verbose = "pv_name,vg_name,pv_fmt,pv_attr,pv_size,pv_free,pvseg_start,pvseg_size,lv_name,seg_start_pe,segtype,seg_pe_ranges"
1959 # Configuration option report/vgs_cols_full.
1960 # List of columns to report for lvm fullreport's 'vgs' subreport.
1961 # See 'vgs -o help' for the list of possible fields.
1962 # This configuration option has an automatic default value.
1963 # vgs_cols_full = "vg_all"
1965 # Configuration option report/pvs_cols_full.
1966 # List of columns to report for lvm fullreport's 'vgs' subreport.
1967 # See 'pvs -o help' for the list of possible fields.
1968 # This configuration option has an automatic default value.
1969 # pvs_cols_full = "pv_all"
1971 # Configuration option report/lvs_cols_full.
1972 # List of columns to report for lvm fullreport's 'lvs' subreport.
1973 # See 'lvs -o help' for the list of possible fields.
1974 # This configuration option has an automatic default value.
1975 # lvs_cols_full = "lv_all"
1977 # Configuration option report/pvsegs_cols_full.
1978 # List of columns to report for lvm fullreport's 'pvseg' subreport.
1979 # See 'pvs --segments -o help' for the list of possible fields.
1980 # This configuration option has an automatic default value.
1981 # pvsegs_cols_full = "pvseg_all,pv_uuid,lv_uuid"
1983 # Configuration option report/segs_cols_full.
1984 # List of columns to report for lvm fullreport's 'seg' subreport.
1985 # See 'lvs --segments -o help' for the list of possible fields.
1986 # This configuration option has an automatic default value.
1987 # segs_cols_full = "seg_all,lv_uuid"
1989 # Configuration option report/vgs_sort_full.
1990 # List of columns to sort by when reporting lvm fullreport's 'vgs' subreport.
1991 # See 'vgs -o help' for the list of possible fields.
1992 # This configuration option has an automatic default value.
1993 # vgs_sort_full = "vg_name"
1995 # Configuration option report/pvs_sort_full.
1996 # List of columns to sort by when reporting lvm fullreport's 'vgs' subreport.
1997 # See 'pvs -o help' for the list of possible fields.
1998 # This configuration option has an automatic default value.
1999 # pvs_sort_full = "pv_name"
2001 # Configuration option report/lvs_sort_full.
2002 # List of columns to sort by when reporting lvm fullreport's 'lvs' subreport.
2003 # See 'lvs -o help' for the list of possible fields.
2004 # This configuration option has an automatic default value.
2005 # lvs_sort_full = "vg_name,lv_name"
2007 # Configuration option report/pvsegs_sort_full.
2008 # List of columns to sort by when reporting for lvm fullreport's 'pvseg' subreport.
2009 # See 'pvs --segments -o help' for the list of possible fields.
2010 # This configuration option has an automatic default value.
2011 # pvsegs_sort_full = "pv_uuid,pvseg_start"
2013 # Configuration option report/segs_sort_full.
2014 # List of columns to sort by when reporting lvm fullreport's 'seg' subreport.
2015 # See 'lvs --segments -o help' for the list of possible fields.
2016 # This configuration option has an automatic default value.
2017 # segs_sort_full = "lv_uuid,seg_start"
2019 # Configuration option report/mark_hidden_devices.
2020 # Use brackets [] to mark hidden devices.
2021 # This configuration option has an automatic default value.
2022 # mark_hidden_devices = 1
2024 # Configuration option report/two_word_unknown_device.
2025 # Use the two words 'unknown device' in place of '[unknown]'.
2026 # This is displayed when the device for a PV is not known.
2027 # This configuration option has an automatic default value.
2028 # two_word_unknown_device = 0
2031 # Configuration section dmeventd.
2032 # Settings for the LVM event daemon.
2035 # Configuration option dmeventd/mirror_library.
2036 # The library dmeventd uses when monitoring a mirror device.
2037 # libdevmapper-event-lvm2mirror.so attempts to recover from
2038 # failures. It removes failed devices from a volume group and
2039 # reconfigures a mirror as necessary. If no mirror library is
2040 # provided, mirrors are not monitored through dmeventd.
2041 mirror_library = "libdevmapper-event-lvm2mirror.so"
2043 # Configuration option dmeventd/raid_library.
2044 # This configuration option has an automatic default value.
2045 # raid_library = "libdevmapper-event-lvm2raid.so"
2047 # Configuration option dmeventd/snapshot_library.
2048 # The library dmeventd uses when monitoring a snapshot device.
2049 # libdevmapper-event-lvm2snapshot.so monitors the filling of snapshots
2050 # and emits a warning through syslog when the usage exceeds 80%. The
2051 # warning is repeated when 85%, 90% and 95% of the snapshot is filled.
2052 snapshot_library = "libdevmapper-event-lvm2snapshot.so"
2054 # Configuration option dmeventd/thin_library.
2055 # The library dmeventd uses when monitoring a thin device.
2056 # libdevmapper-event-lvm2thin.so monitors the filling of a pool
2057 # and emits a warning through syslog when the usage exceeds 80%. The
2058 # warning is repeated when 85%, 90% and 95% of the pool is filled.
2059 thin_library = "libdevmapper-event-lvm2thin.so"
2061 # Configuration option dmeventd/executable.
2062 # The full path to the dmeventd binary.
2063 # This configuration option has an automatic default value.
2064 # executable = "/sbin/dmeventd"
2067 # Configuration section tags.
2068 # Host tag settings.
2069 # This configuration section has an automatic default value.
2072 # Configuration option tags/hosttags.
2073 # Create a host tag using the machine name.
2074 # The machine name is nodename returned by uname(2).
2075 # This configuration option has an automatic default value.
2078 # Configuration section tags/<tag>.
2079 # Replace this subsection name with a custom tag name.
2080 # Multiple subsections like this can be created. The '@' prefix for
2081 # tags is optional. This subsection can contain host_list, which is a
2082 # list of machine names. If the name of the local machine is found in
2083 # host_list, then the name of this subsection is used as a tag and is
2084 # applied to the local machine as a 'host tag'. If this subsection is
2085 # empty (has no host_list), then the subsection name is always applied
2089 # The host tag foo is given to all hosts, and the host tag
2090 # bar is given to the hosts named machine1 and machine2.
2091 # tags { foo { } bar { host_list = [ "machine1", "machine2" ] } }
2093 # This configuration section has variable name.
2094 # This configuration section has an automatic default value.
2097 # Configuration option tags/<tag>/host_list.
2098 # A list of machine names.
2099 # These machine names are compared to the nodename returned
2100 # by uname(2). If the local machine name matches an entry in
2101 # this list, the name of the subsection is applied to the
2102 # machine as a 'host tag'.
2103 # This configuration option does not have a default value defined.