|
Tim, yes, once they are expired they go back to scratch and
can be re-used just like any tape. No more catalog tape header
issues.
Thanks for the responses.
The thing is, it's not expected as far as I'm concerned. It
would be if there were no tapes available for catalog backups but there are, as
I mentioned. We only have 1 week retention on the catalog backups and there are
2 LTO3 tapes available so it's very unlikely they would both be full. Therefore,
this is the 'rogue behaviour' I was referring to - because of this, I want to
claim my normal backup tapes back rather than letting them stay in the catalog
pool and was wondering how to do it. Reading between the lines of you answers
I'm guessing that all I need to do is expire the tapes and they will return to
the scratch pool.
What I was concerned about was whether once a tape has been
assigned as a catalog tape it could be used for normal backups without an erase
or something like that.
Cheers,
Tim
As Ed said, the hot catalog backups are now treated like
any other policy would be treated - ie taking tapes from scratch, retention,
appending to existing tapes in the pool, etc.
If you are using tapes from scratch more than you think,
take a look at what your retentions are set to. Do you really need to keep the
catalog backups for 1 month? Maybe you are backing it up too often (or not
enough!). Keep in mind if you change retentions, it's probably going to use a
couple more tapes if you don't have like retentions in the catalog
pool.
In short, this is expected behavior and as Ed said, leave
it alone! =)
-Rusty
With NBU 6.0, you don't need to do anything special. Catalog
tapes will be taken from the Scratch pool if necessary and will be put back when
they expire. Your hot catalog backups have a frequency and retention just
like any other backup. As the images expire, the tapes go back to the pool
automatically - they're not "rogue" at all. You don't need to move them
around yourself - just let NetBackup do its thing.
.../Ed
On Jan 23, 2008 10:42 PM, Wilkinson, Tim < Tim.Wilkinson AT dsto.defence.gov DOT au>
wrote:
Hi,
I've noticed that on occasion, the NBU hot
catalog ('NBU-catalog' type policy) backups seem to not use the tapes in the
CatalogBackup volume pool and grabs a tape from the scratch pool. There are 2
LTO3 tapes in that pool (CatalogBackup) specifically for catalog backups and I
don't think they are full so I'm unsure why it does this at all, albeit
rarely.
Now, the question is, how can I return
these rogue tapes to the scratch pool? If I just move it back to scratch pool
will it be used for normal backups, or do I need to erase the
tape?
Cheers,
---------------------------------------------------------------------
Tim Wilkinson
I.T. Support Officer
Science
Corporate Information Systems
Defence
Science & Technology Organisation
Department of Defence
Tel: (02) 96921484
Fax: (02) 96921562
Email: tim.wilkinson AT dsto.defence.gov DOT au
--
Ed Wilts, Mounds View, MN,
USA
mailto:ewilts AT ewilts DOT org
IMPORTANT: This email remains the property of
the Australian Defence Organisation and is subject to the jurisdiction of
section 70 of the CRIMES ACT 1914. If you have received this email in error, you
are requested to contact the sender and delete the email.
_______________________________________________
Veritas-bu maillist - Veritas-bu AT mailman.eng.auburn DOT edu
http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
|
