Hi Tim
Have you check the event log in Windows and also try VSSAdmin to see if VSS 
Works OK.
I'm suggesting that you look on MS Website.
This page can help you to test your MS Volume Shadow Copy Services and see if 
it works OK.

http://technet.microsoft.com/en-us/library/cc754968.aspx

Cheers
Christian

________________________________
Från: ADSM: Dist Stor Manager [ADSM-L AT VM.MARIST DOT EDU] för Timothy Hughes 
[Timothy.Hughes AT OIT.STATE.NJ DOT US]
Skickat: den 14 augusti 2008 16:36
Till: ADSM-L AT VM.MARIST DOT EDU
Ämne: Windows client failing more VSS request issues

Hello all,

We have a Windows 2003 client that failing with the following message in
the client error.log. Has anyone had this problem
with a 5.5.0.2 Windows Client?

'NOGICIANP2\SystemState\NULL\System State\SystemState' failed with error
code: 4353.
08/14/2008 00:16:43 ANS1228E Sending of object
'NOGICIANP2\SystemState\NULL\System State\SystemState' failed
08/14/2008 00:16:43 ANS5258E An error occurred initializing a VSS
request. For more information, see the TSM client error log.

08/14/2008 00:16:43 ANS1375E The snapshot operation failed.

08/14/2008 00:16:43 ANS5258E An error occurred initializing a VSS
request. For more information, see the TSM client error log.

08/14/2008 00:16:43 ANS1512E Scheduled event 'MIDNIGHT' failed.  Return
code = 12.
08/14/2008 10:06:00 ANS1959W Removing previous incomplete group '\System
State\0\SystemState' Id:0-836409676
08/14/2008 10:06:00 ANS2054E Operating system error 13: ????????d.
08/14/2008 10:06:00 ANS5250E An unexpected error was encountered.
   TSM function name : verifyLocalBackups()
   TSM function      : Unable to lock local repository
   TSM return code   : 101
   TSM file          : vssback.cpp (6353)
08/14/2008 10:06:00 ANS5250E An unexpected error was encountered.
   TSM function name : verifyLocalBackups()
   TSM function      : Verifying Local Backups Failed!
   TSM return code   : 101
   TSM file          : vssback.cpp (5725)
08/14/2008 10:06:02 VssRequestor::checkWriterStatus:
VssRequestor::checkWriterStatus() failed with
hr=VSS_E_WRITERERROR_NONRETRYABLE
08/14/2008 10:06:02 ANS5269E The Microsoft Volume Shadow Copy Services
writer 'Cluster Service Writer' current state (VSS_WS_STABLE) is not
valid for the current operation or cannot be determined.  The last error
reported is '800423f4'.

Also,

When I ran a Manual backup of the "System State" and recieved the following

Ans5258e - And error occured Initializing a VSS request
Ans1375E - The snapshot operation failed

TSM Server 5.5.0.3
Aix 5.3
Windows 2003 sp1 Client/TSM Client 5.5.0.2

Thanks for any help, comments, suggestions in advance!