Networker

Re: [Networker] Merits of cloning versus dual backups?

2003-04-23 10:16:25
Subject: Re: [Networker] Merits of cloning versus dual backups?
From: Terry Lemons <lemons_terry AT EMC DOT COM>
To: NETWORKER AT LISTMAIL.TEMPLE DOT EDU
Date: Wed, 23 Apr 2003 10:12:11 -0400
Hang on, folks.  Remember that mminfo looks at the NetWorker database, not
at the actual tape, and that a clone is a copy of an original.  I suspect
what we're seeing is that, even though we're asking mminfo to tell us about
the clone volume, it is reporting on the original volume.

tl

-----Original Message-----
From: Dale Mayes [mailto:dmayes AT KIMBALL DOT COM]
Sent: Wednesday, April 23, 2003 10:05 AM
To: NETWORKER AT LISTMAIL.TEMPLE DOT EDU
Subject: Re: [Networker] Merits of cloning versus dual backups?


Geez...I also thought it de-muxed the original data and wrote
consecutive blocks. That's why I think this list is such a great
resource.

I just compared an "original" tape with its "clone" and the datablocks
are virtually the same in terms of interleaving.

I was hoping my clone tapes would recover "faster" than the original.

I know that I can still achieve that if I want to clone all ssid's for
one particular client one-at-a-time.

I'm going to try the "staging" concept --> then clone to tape --> then
clone the clone tape (for verification) and finally send the "verified"
tape offsite for disaster recovery protection.

Thanks all...

Dale

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