Veritas-bu

Re: [Veritas-bu] Anyone using media sharing in 6.5?

2008-08-13 12:26:46
Subject: Re: [Veritas-bu] Anyone using media sharing in 6.5?
From: "Nardello, John" <john.nardello AT wamu DOT net>
To: <Rusty.Major AT sungard DOT com>, "Bryan S. Leaman" <leaman AT bitbytes DOT com>
Date: Wed, 13 Aug 2008 09:04:29 -0700

I could see some problems if your ACSLS setup has watch_vols going (all tapes are not visible to all servers automatically). Enabling Media Sharing across all media servers could then open the door to NetBackup requesting a tape mount on a server that can't actually see that tape maybe.
 
Not something I've seen, just a possibility.
 
- John Nardello


From: veritas-bu-bounces AT mailman.eng.auburn DOT edu [mailto:veritas-bu-bounces AT mailman.eng.auburn DOT edu] On Behalf Of Rusty.Major AT sungard DOT com
Sent: Tuesday, August 12, 2008 4:46 PM
To: Bryan S. Leaman
Cc: veritas-bu AT mailman.eng.auburn DOT edu; veritas-bu-bounces AT mailman.eng.auburn DOT edu
Subject: Re: [Veritas-bu] Anyone using media sharing in 6.5?


I was just looking over this last night, and was surprised it's not on by default....
I also ran across a statement in the guide that said you should use caution with ACS libraries, but I could not tell why you needed to be cautious. Anyone have an idea?

Thanks,

Rusty Major, MCSE, BCFP, VCS ▪ Sr. Storage Engineer ▪ SunGard Availability Services ▪ 757 N. Eldridge Suite 200, Houston TX 77079 ▪ 281-584-4693
Keeping People and Information Connected® ▪ http://availability.sungard.com/
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"Bryan S. Leaman" <leaman AT bitbytes DOT com>
Sent by: veritas-bu-bounces AT mailman.eng.auburn DOT edu

08/06/2008 09:55 AM

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[Veritas-bu] Anyone using media sharing in 6.5?





I'm finding that I'm vaulting quite a few partially used tapes, because
each tape can only be written by the server that owns it, and I have 7
media servers.  The new media sharing option in 6.5 looks like it would
help to optimize the tape usage, but I'm wondering if anyone has tried
this out yet?  I checked the knowledge base and there are several bugs
related to media sharing that are fixed in 6.5.2 (which I am using).  
Just a bit nervous to enable this in production.  I'm also wondering
where a shared tape is mounted for a restore...is it based on the server
that the image was written on, since there would be no overall tape
"owner"?  We use alternate restore server options quite frequently, so I
don't want to break that.

Any comments on media sharing would be greatly appreciated.

Thanks,

Bryan
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