I thought that might be a possibility, but we were at the end of our
migration process. All the big files from the big clients had already
been migrated. We had less than 2 Gb of data remaining to be migrated off
and that was from about 10 different clients.
I'm running a restore to another client now, migration is running, and we
just got the preempted message. So today's restore is going to work
without issue. There is some particular combination that causes it to
occur, but it's not so rare, because I have seen it before.
I often help TSM along by killing processes, just because I'm (my customer)
too impatient to wait for a drive. I'm hoping all this will go away next
week when we install a new LTO library with 4 drives.
Thanks,
Deb
"Murkowski, Krzysztof"
<Krzysztof.Murkowski@VW To: ADSM-L AT
VM.MARIST DOT EDU
-POZNAN.PL> cc:
Sent by: "ADSM: Dist Subject: Re: not
preempted by higher priority operation
Stor Manager"
<ADSM-L AT VM.MARIST DOT EDU>
09/03/2003 08:31 AM
Please respond to
"ADSM: Dist Stor
Manager"
Hello,
perhaps the allready running process (migration, reclamation, backup stg,
etc)
is reading and writing a very big file. I think the process will not be
stoped
befor the current file is finished. In such cases we help TSM to stop the
current process making its input/output volumes unavailble for the short
time.
Regards,
Krzysztof
> -----Oryginalna wiadomość-----
> Od: Debi Randolph [SMTP:Debra.Randolph AT FBOL DOT COM]
> Wysłano: 2 września 2003 23:11
> Do: ADSM-L AT VM.MARIST DOT EDU
> Temat: not preempted by higher priority operation
>
> Hi List .......
>
> Has this ever happened to you?
>
> I have only two tape drives, so they pretty much run non-stop.
> But when someone goes in to do a restore, whatever is running gets
> preempted and the restore gets completed as a priority.
> But sometimes.....for some reason......TSM does not preempt whatever is
> running and the restore just sits there and never runs.
>
> It happened to us this morning. Both tape drives were migrating data,
so
> nothing with a seriously high priority. Neither drive was writing out
> any seriously large file or seriously large client, we co-locate and were
> mounting tapes left and right, we were down to the last few clients.
>
> The restore sat there for more than an hour in a Tape Wait state.
>
> The customer finally killed the restore. When I restarted it later, it
> ran without issue, at that time we were doing reclamation with both
> drives.
>
> Server is Windows 2000
> Server is SP3
> TSM Server 5.1.7.0
> TSM Client 5.1.5.0 (Windows 2000)
> IBM 3494 library
> IBM 3590 E1A drives
>
> This isn't the first time this has happened, and it doesn't happen all
the
> time. I usually get impatient and kill whatever is running so that a
tape
> drive becomes available. Whenever this happens, we don't get the
> preempted message in the activity log.
>
> ANR1440I All drives in use. Process 237 being preempted
> by higher priority operation.
>
>
> Can anyone explain why this would happen?
>
>
> Thanks,
> Deb Randolph
>
>
>
>
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