David,
You have not said what type of client it is, but as a general rule of thumb, I
would :-
1) Check the client error and schedule logs, and if this does not give the
explanation
2) Run a detailed query filespace for the node in question, to see which
filespace backup
did not complete, and using that information, run an sql query against that
filespace eg.
SELECT HL_NAME,LL_NAME,BACKUP_DATE FROM BACKUPS -
WHERE NODE_NAME = 'TEST2' -
AND FILESPACE_NAME = 'TEST2\DATA:' -
AND BACKUP_DATE>'2002-07-29 22:00'
Substitute your node and filespace names and the start date/time of your stuck
filespace backup,
and write the output to a file.
You will then be able to analyse the output.
If you have large timestamp gaps between the backups, you probably have
overlarge directories, or possibly large file resends
If you just have huge numbers of backups with consistent timestamp gaps, then
TSM is
doing the best it can and you need to look at beefing up your backup
infrastructure,
David E Ehresman <deehre01 AT louisville DOT edu> on 07/30/2002 07:38:17 PM
Please respond to "ADSM: Dist Stor Manager" <adsm-l AT vm.marist DOT edu>
To: adsm-l AT vm.marist DOT edu
cc: (bcc: John Naylor/HAV/SSE)
Subject: Backup stalled
I had a large backup running last night writing directly to tape. In
the morning the process to backup onsite tapes to the offsite copy
started. That process was waiting on the tape being written by the
client backup. But the client backup was stalled, i.e. it was no longer
sending data to the tsm server and a q sessions showed the backup in a
RecvW state. Any ideas on how to diagnose what caused the stall
condition or how to fix it?
David
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