Netbackup 7.5 - Backup failed with snapshot error 156

Description

Job details error: ERR - Error encountered while attempting to get additional files for System State:\

On the client in the event viewer: The shadow copies of volume C: were aborted because the shadow copy storage could not grow due to a user imposed limit.

ISSUE:-

Backups failed and in event viewer of the client it showed "shadow copy storage could not grow due to a user imposed limit"

ERROR:-

Job details error: ERR - Error encountered while attempting to get additional files for System State:\

On the client in the event viewer: The shadow copies of volume C: were aborted because the shadow copy storage could not grow due to a user imposed limit.

TROUBLESHOOTING:-

Check the writers from command line

vssadmin list writers

All writers should show stable and no error. If any are in “waiting for completion” or “failed” status a restart of the server may clear the writer and restore it to a stable state.

SOLUTION/WORKAROUND:

After the writers are in a stable state check the shadow copy limit for each volume

This should be 10-15% of the actual drive space.

Open Computer Management for Windows 2003 clients

- In the console tree, right-click Shared Folders, -> select All Tasks, and click -> Configure Shadow Copies

- Click the volume where you want to make changes, and then click Settings.

- In the Settings dialog box, change the settings as appropriate..10-15% of the actual drive space

For Windows 2008 clients

Double click "my computer"

Right click the C drive and click "configure shadow copies"

Click the first volume and click settings

The "storage area" will show where the cache files are being created for that volume.

Change the "Maximum size" to "use limit" and set the limit to 10% of the volumes free space. Min is 300MB.

Repeat for the remaining volumes and retry the backup.