input/howto/backup.creole

   1 = Debian backup =
   2
   3 storace.debian.org alias backup.debian.org is Debian's primary backup machine.
   4 backuphost.debian.org is Debian's secondary backup machine.
   5
   6 == Backup organisation ==
   7
   8 {{{/srv/backup.debian.org}}} contains two directories, {{{staging}}} and
   9 {{{backup}}}.  The latter contains the backup and is organised in directories
  10 with date directories that contain all the files from that particular day.  The
  11 number of kept copies is configured in files in {{{/etc/da-backup-manager/}}}.
  12
  13 The {{{/staging/}}} directory is used by the clients, i.e. the .debian.org
  14 hosts that have something valuable to backup.  The contents of the particular
  15 directories is pushed from root to root@backup.debian.org via rsync via a
  16 restricted SSH session based on key-authentication.
  17
  18 Directories:
  19
  20 {{{
  21   /srv/backup.debian.org/staging/
  22                                  wiki.debian.org
  23                                  cvs.debian.org
  24                                  ...
  25
  26   /srv/backup.debian.org/backup/
  27                                wiki.debian.org/
  28                                                20050909
  29                                                20050910
  30                                                20050911
  31                                                ...
  32                                cvs.debian.org/
  33                                               20050909
  34                                               20050910
  35                                               20050911
  36                                               ...
  37                                  ...
  38 }}}
  39
  40 == Adding new backup directories ==
  41
  42 * install da-backup on the client
  43 * create a crontab that runs da-backup daily at some convenient time
  44 * configure the directories in {{{/etc/da-backup}}}
  45 * configure how many copies of the directory should be kept in
  46   backuphost's {{{/etc/da-backup-manager/}}}
  47 * run {{{da-backup -v}}} on the client to see if it all works.
  48
  49
  50 * Backup items should be called {{{<host>/<directory>}}}.
  51   Historically we also used {{{services/<servicename>}}}.
  52
  53 == Consistency checks ==
  54
  55 * Run {{{sudo -u nagios /usr/lib/nagios/plugins/dsa-check-dabackup-server}}}
  56
  57 == Restoring specific files ==
  58
  59 * Login to the bacula director {{{dinis.debian.org}}}
  60 * run {{{sudo bconsole}}}
  61 * Use the {{{restore}}} command
  62 * Choose "find the job ids of the most recent backup for a client" (9)
  63 * Choose the server
  64 * Choose "enter a list of directories to restore for found job ids" (11)
  65 * Login to the server
  66 * Look at the files in {{{/var/tmp/bacula-restores/}}}
  67 * Clean up the files in {{{/var/tmp/bacula-restores/}}}