= Debian backup =

storace.debian.org alias backup.debian.org is Debian's primary backup machine.
backuphost.debian.org is Debian's secondary backup machine.

== Backup organisation ==

{{{/srv/backup.debian.org}}} contains two directories, {{{staging}}} and
{{{backup}}}.  The latter contains the backup and is organised in directories
with date directories that contain all the files from that particular day.  The
number of kept copies is configured in files in {{{/etc/da-backup-manager/}}}.

The {{{/staging/}}} directory is used by the clients, i.e. the .debian.org
hosts that have something valuable to backup.  The contents of the particular
directories is pushed from root to root@backup.debian.org via rsync via a
restricted SSH session based on key-authentication.

Directories:

{{{
  /srv/backup.debian.org/staging/
                                 wiki.debian.org
                                 cvs.debian.org
                                 ...

  /srv/backup.debian.org/backup/
                               wiki.debian.org/
                                               20050909
                                               20050910
                                               20050911
                                               ...
                               cvs.debian.org/
                                              20050909
                                              20050910
                                              20050911
                                              ...
                                 ...
}}}

== Adding new backup directories ==

* install da-backup on the client
* create a crontab that runs da-backup daily at some convenient time
* configure the directories in {{{/etc/da-backup}}}
* configure how many copies of the directory should be kept in
  backuphost's {{{/etc/da-backup-manager/}}}
* run {{{da-backup -v}}} on the client to see if it all works.


* Backup items should be called {{{<host>/<directory>}}}.
  Historically we also used {{{services/<servicename>}}}.

== Consistency checks ==

* Run {{{sudo -u nagios /usr/lib/nagios/plugins/dsa-check-dabackup-server}}}

== Restoring specific files ==

* Login to the bacula director {{{dinis.debian.org}}}
* run {{{sudo bconsole}}}
* Use the {{{restore}}} command
* Choose "find the job ids of the most recent backup for a client" (9)
* Choose the server
* Choose "enter a list of directories to restore for found job ids" (11)
* Login to the server
* Look at the files in {{{/var/tmp/bacula-restores/}}}
* Clean up the files in {{{/var/tmp/bacula-restores/}}}