Backing Up Raid Arrays (Linux) - ACRONIS Backup & Recovery 10 Advanced Server Virtual Edition User Manual

2.10 Backing up RAID arrays (Linux)

Acronis Backup & Recovery 10 Agent for Linux can back up and recover Linux Software RAID devices
(known as multiple-disk devices or MD devices) and hardware RAID arrays.
Software RAID arrays
Software RAID arrays, or MD devices, combine several volumes and make solid block devices
(/dev/md0, /dev/md1, ..., /dev/md31), information of which is stored in /etc/raidtab or in dedicated
areas of those volumes.
Backup
You can back up active (mounted) software arrays in the same way as logical volumes. The arrays
appear at the end of the list of volumes available for backup.
Basic volumes included in software arrays are listed as if they had a corrupted file system or do
not have a file system at all. Backing up such volumes does not make sense when a software
array is mounted, as it won't be possible to recover them.
Example
Here is an example of a volumes list obtained with the --list command. The GUI displays a similar
table.
The system has RAID-1 configured on two basic volumes: sdc1, sdd1.
Num Partition
---- -------------------- ----------- ---------- ---------- -----------
Disk 1:
1-1 sda1
1-2 sda2
1-3 sda3
Disk 2:
Table
Unallocated
Disk 3:
3-1 sdc1
Unallocated
Disk 4:
4-1 sdd1
Unallocated
Disk 5:
Table
Unallocated
Dynamic & GPT Volumes:
DYN1 md0
You can back up the RAID array as follows:
trueimagecmd --create --partition:DYN1 --filename:/tmp/raid.tib --
progress:on
In the Graphical User Interface you can select the DYN1 check box.
Copyright © Acronis, Inc., 2000-2010
Flags Start
Pri,Act 63
Pri 208845
Pri 15759765
0
1
Pri 63
16755795
Pri 63
16755795
0
1
Disk: 5 0
Disk: 4 0
Size Type
208782 Ext3
15550920 ReiserFS
1012095 Linux Swap
Table
16771859 Unallocated
16755732 Ext3
16065 Unallocated
16755732 None
16065 Unallocated
Table
16771859 Unallocated
33511168 Ext3
63
63
47