Re: [Veritas-bu] Best Practice: Location of the NetBackupCatalog

We have 2 sets of SANS's replicating all the time, and it seems to be ok. But like you said, have to work with what you got !

Simon

From: Dominik Pietrzykowski [mailto:dominik_pietrzykowski AT toll.com DOT au]
Sent: Wednesday, May 14, 2008 6:28 AM
To: WEAVER, Simon (external); Ed Wilts
Cc: veritas-bu AT mailman.eng.auburn DOT edu
Subject: RE: [Veritas-bu] Best Practice: Location of the NetBackupCatalog

I’d love to have a separate SAN for the catalogue and DSUs (or a thumper for disk staging, maybe one day soon) but most of us have to work with what we get. If you can justify it and the business will pay for it then great but many of us, we have to scrape a lot of it together. I’m glad I didn’t have to push to hard for the 8500.

From: WEAVER, Simon (external) [mailto:simon.weaver AT astrium.eads DOT net]
Sent: Wednesday, 14 May 2008 3:06 PM
To: Ed Wilts
Cc: veritas-bu AT mailman.eng.auburn DOT edu
Subject: Re: [Veritas-bu] Best Practice: Location of the NetBackupCatalog

Its not really about SAN reliability. Its about the best practice to locate the catalog. Is storing the catalog on a Production SAN with Production Data the best method, or would it be feasible to locate the catalog "outside" the production SAN.

Difference in recovery could vary. For example, if there was a SAN outage, failure (whatever you want to define it), and production Data is lost, including your Catalog then before ANY recovery takes place, you have to bprecover (could take 40 - 2 hours depending on the size of the catalog. I think one post noticed 1TB). Times are only an estimate.

If the Catalog was on its own SAN, or RAID+Hot Swap, it is one less step involved to start recovery on production systems.

I am happy about the catalog on a RAID5, Hot swappable, and yes I have seen a complete RAID set die, including a SAN environment totally destroyed all known disk groups, complete unrecoverable data and loss of catalog. What did not help was the lack of knowledge about recovering netbackup and the catalog tape process.

If there is a document that symentec gives preference about the location of a catalog then it would be nice to see it. I am guessing that as most post's shows its on the SAN, its probably not a big deal.

I just look at it that from a DR point, keeping everything about NetBackup grouped together, including the catalog.

Ed, 34 years old and probably older than yourself young man, but as posted, some of the failures I have seen have been quite interesting to see :-)

Thanks for your reply

Warm Regards

Simon

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