HP Application Recovery Manager software Integration guide (March 2008)

The reason may be the failure of the previous backup and, due to a Microsoft
Exchange Server 2003 issue, the Exchange Server Writer could not perform a proper
cleanup.
Action
Restart the Information Store.
For more information, see the web page http://support.microsoft.com/kb/945424/
en-us.
Problem
Microsoft Exchange Server 2003 aborts the backup if the shadow copy creation takes
over 20 seconds.
If an Exchange Server 2003 Writer is being backed up, the session can fail with
VSSBAR reporting:
Snapshot could not be created.
In the application event log on the application system, the following event is recorded:
Event Type: Error
Event Source: ESE Event
Category: (16)
Event ID: 2004
Information Store (4916) Shadow copy 3 time-out (20000 ms).
Action
The following can help to solve the problem:
• Limit the number of users that are accessing the management system.
• Reduce the number of volumes in a snapshot set. Create a backup specification
dedicated to each storage group instead of one specification for the whole server.
See “Microsoft Exchange Server writer backup specifics” on page 54.
Problem
Snapshots (volume shadow copies) creation fails with EVA provider.
During a VSS backup, the following error is displayed:
[Critical] It was not possible to create Volume Shadow Copies.
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