TSM error ANS1403E Error loading a required ad_dll.dll DLL

Hi everyone.
                        my tsm backup is failling with the following error:

ANS1377W The client was unable to obtain a snapshot of '\\vwarbass0000002\e$'. The operation will continue without snapshot support.
ANS1512E Scheduled event 'DIARIO_0130' failed.  Return code = 12.
 ANS1403E Error loading a required ad_dll.dll DLL
 ANS1403E Error loading a required ad_dll.dll DLL
  ANS1403E Error loading a required ad_dll.dll DLL


no modifications were made.

Any idea about it?

Thanks in advance.
nicolas piomboSys adminAsked:
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dfkeCommented:
There are 2 possible causes for this error.

- The LD_LIBRARY_PATH environment variable is not set or exported without the absolute path to /tivoli/tsm/client/ba/bin
- Some required software packages may be missing from the host

Cheers
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nicolas piomboSys adminAuthor Commented:
Hi DFKE,
               This is a wintel server. any idea?
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Carlos IjalbaSenior SysadminCommented:
Hi,

Basically, TSM cannot find a required DLL, so:

1.- the DLL file could be damaged/deleted (check that the DLL file is in your system, and is readable)
2.- TSM cannot find it because the system variables are not set correctly (windows also has an ENV with variables)
3.- you could try to perform DLL fixing techniques, like unregister the DLL & re-register it with regsrv32, etc
4.- since the problem is in the client, you could try reinstalling the TSM BAC client (faster that doing steps 1-3). You could also update the client to a newer version, so you can kill 2 birds with one shot.

An alternative, which I would probably try first, is to see why the snapshot is failing, and fix that, maybe that is part of the problem.
For that you can check the logs, to see what happened before the errors that you reported, as it could be a VSS problem, that can be fixed from the vssadmin console.
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nicolas piomboSys adminAuthor Commented:
Carlos, thanks a lot for your help. I did a client  reinstall and the .dll error is gone. But now i have this error:

ANS1327W The snapshot operation for 'E:' failed with error code: 653.

Any idea?

Thanks in advance.
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Carlos IjalbaSenior SysadminCommented:
Hi Nicolas,

This is documented in IBM's TSM KDB, check this link:

http://www-01.ibm.com/support/docview.wss?uid=swg21661854

Follow IBM's advice to check the VSS snaps taken, and you might have to split the backup in 2 or more scheds.

You can also clear the VSS snaps and try from fresh.
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nicolas piomboSys adminAuthor Commented:
Thanks a lot carlos. After refreshing dll.  files the backup run succesfully.
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