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[http://dar.linux.free.fr/ DAR homepage]
[http://dar.linux.free.fr/ DAR homepage]
{{Note box|'''Important''' - Be aware of the concepts and issues as described in this section https://wiki.contribs.org/Backup_server_config#Backup_and_Restore_concepts.2C_issues_and_other_information}}
===Typical scenarios===
===Typical scenarios===
each set".
each set".
If you want a fixed number of increments, less than a multiple of 7, in each set, then choose "Full backup
is allowed on" = Anyday.
is allowed on" = Everyday. eg Daily backups in each set = 6 will result in 1 Full backup and 5 incremental backups, on each full backup all backups are deleted including the incrementals.
Create the deletion script
Create the deletion script
nano -w /opt/scripts/deletebkp1
Enter the following (using your share name, user, pasword & domain)
Enter the following (using your share name, user, pasword & domain)
Create the cron job
Create the cron job
nano -w /etc/cron.d/deletebkp1
Enter the following (setting the time & day to be just before your scheduled backup time), see below.
Enter the following (setting the time & day to be just before your scheduled backup time), see below.
mkdir -p /etc/e-smith/templates-custom/etc/dar/DailyBackup.dcf
mkdir -p /etc/e-smith/templates-custom/etc/dar/DailyBackup.dcf
nano -w /etc/e-smith/templates-custom/etc/dar/DailyBackup.dcf/41go-into
--go-into opt
--go-into opt
Create custom template fragment to exclude the unneeded files and directories
Create custom template fragment to exclude the unneeded files and directories
mkdir -p /etc/e-smith/templates-custom/etc/dar/DailyBackup.dcf
mkdir -p /etc/e-smith/templates-custom/etc/dar/DailyBackup.dcf
nano -w /etc/e-smith/templates-custom/etc/dar/DailyBackup.dcf/45prune
--prune home/e-smith/files/ibays/mirror/cgi-bin
--prune home/e-smith/files/ibays/mirror/cgi-bin
=== Backup file slices are NOT autonomous ===
=== Backup file slices are NOT autonomous ===
The catalogue of the contents of the backup is put in the last slice. If for some reason the last slice can not be written (e.g. backup medium is full or network failure), is lost or corrupt, the slices already saved are useless.
The catalogue of the contents of the backup is put in the last slice. If for some reason the last slice can not be written (e.g. backup medium is full or network failure), is lost or corrupt, the slices already saved are useless.
=== Naming of the backups on the workstation share or USB disk ===
=== Naming of the backups on the workstation share or USB disk ===
First, MOUNT THE BACKUP DRIVE (if required):
First, MOUNT THE BACKUP DRIVE (if required):
mount /dev/sdc1 /media/BackupDrive1/
mount /dev/sdc1 /media/BackupDrive1/
You can mount the configured CIFS/SMB destination using<syntaxhighlight lang="bash" >
mount -t cifs //$(config getprop backupwk SmbHost)/$(config getprop backupwk SmbShare) $(config getprop backupwk Mount) -o credentials=/etc/dar/CIFScredentials
</syntaxhighlight>List available backups<syntaxhighlight lang="bash" >
find $(config getprop backupwk Mount)/$(config get SystemName).$(config get DomainName) -name "*.1.dar" | sed s/\.1\.dar$//
</syntaxhighlight>
Then, RESTORE THE DIRECTORY:
Then, RESTORE THE DIRECTORY:
dar -x /media/BackupDrive1/server.domain.local/set2/full-201408092200 -N -R / -w -g home/e-smith/files/ibays/share_data/files
dar -x /media/BackupDrive1/server.domain.local/set2/full-201408092200 -N -R ./ -w -g home/e-smith/files/ibays/share_data/files
This will restore the directory /home/e-smith/files/ibays/share_data/files to you current directory. If your current directory is /tmp/, the files will be recovered to /tmp/home/e-smith/files/ibays/share_data/files. This will make you able to search through the recovered files and, if needed, move them to their proper location.
{{Warning box|Be sure to use -R ./ (the dot) to restore in the current dir, otherwise you'll restore files/dirs in their original path}}
You may also have to RESTORE ANY INCREMENTS:
You may also have to RESTORE ANY INCREMENTS:
dar -x /media/BackupDrive1/server.domain.local/set2/inc-001-201408102200.1.dar -N -R / -w -g home/e-smith/files/ibays/share_data/files
dar -x /media/BackupDrive1/server.domain.local/set2/inc-001-201408102200.1.dar -N -R ./ -w -g home/e-smith/files/ibays/share_data/files
dar -x /media/BackupDrive1/server.domain.local/set2/inc-002-201408112200.1.dar -N -R / -w -g home/e-smith/files/ibays/share_data/files
dar -x /media/BackupDrive1/server.domain.local/set2/inc-002-201408112200.1.dar -N -R ./ -w -g home/e-smith/files/ibays/share_data/files
dar -x /media/BackupDrive1/server.domain.local/set2/inc-003-201408122200.1.dar -N -R / -w -g home/e-smith/files/ibays/share_data/files
dar -x /media/BackupDrive1/server.domain.local/set2/inc-003-201408122200.1.dar -N -R ./ -w -g home/e-smith/files/ibays/share_data/files
dar -x /media/BackupDrive1/server.domain.local/set2/inc-004-201408132200.1.dar -N -R / -w -g home/e-smith/files/ibays/share_data/files
dar -x /media/BackupDrive1/server.domain.local/set2/inc-004-201408132200.1.dar -N -R ./ -w -g home/e-smith/files/ibays/share_data/files
{{Note box|Unmount the backup destination after any manual exploration:
umount $(config getprop backupwk Mount)}}
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[[Category: Backup]]
[[Category: Backup]]
[[Category:Howto]]
[[Category:Howto]]
