He mentioned "Due to tape library slot limitation" and "Check out all tape
(current cycle)" I think he is checking out all tapes (including primary
copies)
I believe he is trying to manage around primary tapes being requested and
wondering why it was needed in this case. Also, I think ANR1228I only
refers to primary volumes
backup-stg backs up ALL files that are not already in the copypool. not
just active files. Nothing that happened on the client could have caused
this tape to be requested. The only thing that could have caused an older
primary tape to be requested in a backup-stg process is that, for some
reason, the files that were on that tape were not in the copypool.
This could happen from either:
1 the copy failed the first time. either the tape was marked unavailable
or destroyed or the backup-stg failed for another reason. you would
receive log messages about the tape not being available but the process
may not have explicitly failed. If these tapes were changed to
readw/reado in the last couple days, this could have caused the backup-stg
process to request the old tape.
or
2 something happened to a copypool volume so that TSM decided that the
data needed to be recopied. Did you delete any copypool volumes
recently? Any failed reclamations or any processes that could have
detected a fault in a copypool volume?
As mentioned before TSM is designed to work with all the primary volumes
available in the library. Failing that, it's assumed an operater is
monitoring the activity log to satisfy mount requests. If you are
checking tapes out every day like this, how are you handling reclamation ?
Regards,
Shawn
________________________________________________
Shawn Drew
Internet
RickAdamson AT WINN-DIXIE DOT COM
Sent by: ADSM-L AT VM.MARIST DOT EDU
05/17/2012 09:10 AM
Please respond to
ADSM-L AT VM.MARIST DOT EDU
To
ADSM-L
cc
Subject
Re: [ADSM-L] backup stgpool - command issue
Victor,
Assuming it is a copy pool volume (since primary storage volumes should
always be available in your library).
Investigate the volume status on your TSM server:
Use the "query drmedia" command determine the volume's current state, if
in fact it should be out of the library it's state would be either
"offsite, courier, vault, etc.". This tells TSM that the volume should
not be in the library and do not attempt to mount it.
If the volume's state is "mountable" then the TSM server thinks the
volume is in the library. Use the "move drmedia" command to apply the
correct status to the volume.
Additionally, check the access status of the volume by using the query
volume command to make sure it is still readwrite, and not readonly or
unavailable, as the server could have altered its access status when it
was unable to use it.
For a complete explanation of the DRM process refer to the admin guide.
~Rick
Jax, FL.
-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of
Victor Shum
Sent: Thursday, May 17, 2012 7:13 AM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: [ADSM-L] backup stgpool - command issue
Dear all :
Due to tape library slot limitation, we implement TSM 6.3 with the
following
scenarios :
Hardware
TS-3200 with 4 x LTO5, 48 slots
TSM configure
3 x primary pool ( A, B, C) for 1 x copy pool (for offsite - off_data)
4 cycle x 7 day of tape media
Daily backup : 4 ~ 8TB
Workflow
1. Different hosts running different backup job, so that all the
tape
Drive will be occupy during the daily backup.
2. At the end of day, we use backup stgpool to make a copy of
three
primary pool
3. Check out all tape (current cycle)
4. Insert a new set of tape
5. Audit tape library, check in tape..etc
6. Repeat 1
But we found the backup stgpool cannot be completed last-night. From
the
actlog, it keep report : ANR1228I Removable volume AAA208L5 is required
for
storage pool backup. (SESSION: 10245, PROCESS: 199). While this media
was
used for backup in previous cycle (2 weeks ago).
So I am thinking is some of the files has been deleted on the hosts side
yesterday, so the existing tape (inside the tape library) does not
content
those files. But the "backup stgpool" has to copy all "active" files to
the
copy-pool; that is why TSM try to mount other tape has the files on it??
Or I just hit a bug of TSM ??
Best regards,
Victor Shum
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