Summary
A block backup fails due to unstable VSS writers. This article provides a method to correct the condition.
Symptoms
In the job report, the following error displays:
172.18.2.25 aph Mon May 20 03:10:34 2013 SNBAPH_335J Sending BACKUP message to sssnap...
172.18.2.25 sssnap Mon May 20 03:10:46 2013 SNBSNP3069E 1744: MsSnapShot::do_snapshotset:QueryStatus error RC(0x8007000e) ()
172.18.2.25 sssnap Mon May 20 03:10:46 2013 SNBSNP3069E 1744: MsSnapShot::backup_components:do_snapshotset error(-4)
172.18.2.25 sssnap Mon May 20 03:10:46 2013 SNBSNP3069E 1744: BACKUP::backup_components failed rc(-8)
172.18.2.25 sssnap Mon May 20 03:10:46 2013 SNBSNP3069E 1744: SnapCMInterface::backup_apps:backup_apps( RC(-16)
172.18.2.25 aph Mon May 20 03:10:46 2013 SNBAPH_381E BexException in message (BACKUP_VSS) to module (sssnap), reqrc (-16)
The error occurs if the VSS writers are not in a stable state and there is insufficient memory on the client.
The following error message may also display in the Application event log:
Event Type: Error
Event Source: VolSnap
Event Category: None
Event ID: 5
Description:
The shadow copy of volume volume could not be created due to insufficient non-paged memory pool for a bitmap structure
Resolution
- On the node where the backup failed, open the command prompt and run the command vssadmin list writers.
- In the result, note that a few writers are not in a Stable state.
- Apply the following Microsoft hotfix if applicable.
support.microsoft.com/kb/940349
support.microsoft.com/kb/887827/en-us - Reboot the node.