HP StorageWorks P9000 Replication Manager Software 7.1 CLI User Guide (TB584-96026, May 2011)

Backing up a file system to tape
This section gives an example of backup of a file system to a tape. In this example, we back up the
file server FSServer to a secondary volume in an online backup operation before backing it up from
a secondary volume to tape. As a mount point, we use E:. The example uses Operation_A as the
operation ID that identifies the file system to be backed up.
Resynchronizing copy groups
When usual operation is in the split state, resynchronize the copy groups before backing up the data.
When usual operation is in the pair status, there is no need to resynchronize the copy groups before
backing up data. Instead, when the tape backup is complete, resynchronize the copy group to initialize
it.
To resynchronize the copy group:
• Clear the secondary volume cache.
Clear the system cache on the backup server before backing up the data.
To clear the system cache, execute EX_DRM_CACHE_PURGE on the backup server to mount or
unmount the secondary volume. For now, assume the copy group name as VG01,vol01.
BKServer > EX_DRM_CACHE_PURGE Operation_A -cg VG01,vol01
Backing up a file system
To back up the file system:
1. Back up the file system to the secondary volume.
To do this, execute EX_DRM_FS_BACKUP. Specify the operation ID Operation_A as the
argument:
FSServer > EX_DRM_FS_BACKUP Operation_A
2. Check that the file system has been backed up correctly.
To check that backup information bearing the date on which the file system had been backed
up from the primary volume to the secondary volume is available, execute the drmfscat command
on the file server.
FSServer > drmfscat E:
INSTANCE: E:
BACKUP-ID:0000000001 BACKUP-MODE: ONLINE INSTANCE: E:
ORIGINAL-ID:0000000001
START-TIME:2003/08/01 19:00:00 END-TIME: 2003/08/01 19:03:00
:
:
In this example, information about the backup operation carried out in step 1 has been loaded
in the backup catalog with the new backup ID 0000000001.
CLI User Guide 253