Re: [Veritas-bu] Netbackup 6 MP4, catalog backups stealing tape from scr

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

From: veritas-bu-bounces AT mailman.eng.auburn DOT edu [mailto:veritas-bu-bounces AT mailman.eng.auburn DOT edu] On Behalf Of Ed Wilts
Sent: Thursday, January 24, 2008 9:01 AM
To: Wilkinson, Tim
Cc: VERITAS-BU AT mailman.eng.auburn DOT edu
Subject: Re: [Veritas-bu] Netbackup 6 MP4, catalog backups stealing tape from scratch pool

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

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