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# Creating a Snapshot of Files on a C Series Controller

You can create a snapshot of the system software to serve as a backup. When you create a snapshot, the software backs up the operating system and the SRC software to a partition on the C Series Controller. You can restore the files in a snapshot to the system software if needed.

To create a snapshot of the system software:

1. Verify which version of the software is running on the system.

       user@host> show system information

2. Enter the request system snapshot command. Use the verbose option to view information about the snapshot process.

       user@host> request system snapshot verbose
       Create system snapshot [yes,no] ? (no) yes

       Filesystem label=
       mke2fs 1.35 (28-Feb-2004)
       OS type: Linux
       Block size=4096 (log=2)
       Fragment size=4096 (log=2)
       262144 inodes, 524288 blocks
       26214 blocks (5.00%) reserved for the super user
       First data block=0
       Maximum filesystem blocks=536870912
       16 block groups
       32768 blocks per group, 32768 fragments per group
       16384 inodes per group
       Superblock backups stored on blocks:
               32768, 98304, 163840, 229376, 294912

       Writing inode tables: done
       Creating journal (8192 blocks): done
       Writing superblocks and filesystem accounting information: done

       This filesystem will be automatically checked every 32 mounts or
       180 days, whichever comes first. Use tune2fs -c or -i to override.
         DUMP: Date of this level 0 dump: Thu Oct 19 09:43:44 2006
         DUMP: Dumping /dev/mapper/vg0-root (/) to standard output
       restore: cannot open /dev/tty: No such device or address
         DUMP: Label: none
         DUMP: Writing 64 Kilobyte records
         DUMP: mapping (Pass I) [regular files]
         DUMP: mapping (Pass II) [directories]
         DUMP: estimated 1036678 blocks.
         DUMP: Volume 1 started with block 1 at: Thu Oct 19 09:43:45 2006
         DUMP: dumping (Pass III) [directories]
         DUMP: dumping (Pass IV) [regular files]

         DUMP: Volume 1 completed at: Thu Oct 19 09:48:13 2006
         DUMP: Volume 1 1035200 blocks (1010.94MB)
         DUMP: Volume 1 took 0:01:10
         DUMP: Volume 1 transfer rate: 14788 kB/s
         DUMP: 1035200 blocks (1010.94MB)
         DUMP: finished in 70 seconds, throughput 14788 kBytes/sec
         DUMP: Date of this level 0 dump: Thu Oct 19 09:47:02 2006
         DUMP: Date this dump completed:  Thu Oct 19 09:48:13 2006
         DUMP: Average transfer rate: 14788 kB/s

3. Verify information about the snapshot.

       user@host> show system snapshot

#### Related Topics

- Before You Upgrade the Software on a C Series Controller
- Restoring the Files in a Snapshot
- Overview of Software Management on a C Series Controller

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