Backup fails with status: 156: snapshot error encountered

[sugarboy]

Hi All,

I was running a backup to an OST device (while a restore of earlier backup on the same device is already in progress ).

And the backup fails witht the below error:

Info bpbkar32(pid=4536) done. status: 156: snapshot error encountered     

However the policy used for the backup is not configured for any snapshot backups.

Can anyone let me what could have went wrong here?

Using Netbackup 7.5

Thanks much,

VS

[mph999]

To start this investigation, we need to see the bpfis log, at VERBOSE=5 (and GENERAL=2 if Windows), from the client.

Martin

[revarooo]

What type of backup is it and what is the client OS and NBU version?

[sugarboy]

Backup Type: Full backup (Normal)

Client: Windows 2008 R2

NBU: 7.5

Thanks,

VS

[sugarboy]

Martin,

Here is the log output, could you please let me know what could have went wrong

bpfis: INF - BACKUP START 4052
bpfis: FTL - cannot open C:\Program Files\Veritas\NetBackup\online_util\fi_cntl\bpfis.fim.ss-dellsw-2_1342053502.1.0
bpfis main: Overriding original online_util() status <12> with <1542>.
bpfis: Starting keep alive thread.
deleteReference:    reference not found in the list
bpfis: Delete reference: status [-4]
writeSnapshotLockFile:    Writing type[2] refcount[0]
getFileName:  FileName is [C:\Program Files\Veritas\NetBackup\online_util\fi_cntl\ss-dellsw-2_1342053502_copy1.lock]
unlockSnapshot:    file[C:\Program Files\Veritas\NetBackup\online_util\fi_cntl\ss-dellsw-2_1342053502_copy1.lock] : zero reference count
bpfis: Released snapshot lock: status [0]
bpfis Exit: Deleting snapshot lock files from client for id [ss-dellsw-2_1342053502] and copy_number [1]
getFileName:  FileName is [C:\Program Files\Veritas\NetBackup\online_util\fi_cntl\ss-dellsw-2_1342053502_copy1.lock]
deleteSnapshotLockFile:    file[C:\Program Files\Veritas\NetBackup\online_util\fi_cntl\ss-dellsw-2_1342053502_copy1.lock] deleted: status[0]
bpfis: INF - EXIT STATUS 1542: An existing snapshot is no longer valid and cannot be mounted for subsequent operations
 

[falti_manullang]

• Enable windows openfile backup option

• Enable your Volume Shadow Copy

• Restart your Windows VSS

[mph999]

What do these commands show ...

vssadmin list providers

vssadmin list writers

This will show the state or the VSS writers ...

The snapshot I expect will be of the shadow copy components.

Thx,

Martin