Same here (not convinced about mix retentions on tape) - hence why I
separate pools for specific policies - plus its not turned on :-)

Regards

Simon Weaver
3rd Line Technical Support
Windows Domain Administrator 

EADS Astrium Limited, B32AA IM (DCS)
Anchorage Road, Portsmouth, PO3 5PU

Email: Simon.Weaver AT Astrium-eads DOT net



-----Original Message-----
From: Paul Keating [mailto:pkeating AT bank-banque-canada DOT ca] 
Sent: 26 April 2006 18:05
To: veritas-bu AT mailman.eng.auburn DOT edu
Subject: RE: [Veritas-bu] Volume Pools [recommendations please]


I didn't say you CAN'T.
I said you don't have to...(and in my opinion, you shouldn't)

You can have a single volume pool, and three groups of tapes within one
pool, all with different retentions.

In your case, if you write a 1 year retention to a tape, that tape is tied
up for a year....even though there's only a couple hundred megs on it with a
yearly retention, and 60 gigs with a 2 week retention...that 2 week
retention data is stuck on that tape, wasting space for a full year.

If you turned off the "Allow Multiple Retentions Per Media" option, you
would have a couple tapes for 1 year retained data, a bunch of tapes for 3
month retained data and a bunch of tapes with 2 week retained data...and all
in the same volume pool, if you so choose. You would constantly have fresh
scratch media available.

You'd have a hard time convincing me why you need to mix retention on a
single media.

Paul

-- 


> -----Original Message-----
> From: veritas-bu-admin AT mailman.eng.auburn DOT edu
> [mailto:veritas-bu-admin AT mailman.eng.auburn DOT edu] On Behalf Of 
> Martin, Jonathan (Contractor)
> Sent: April 26, 2006 12:56 PM
> To: Paul Keating; veritas-bu AT mailman.eng.auburn DOT edu
> Subject: RE: [Veritas-bu] Volume Pools [recommendations please]
> 
> 
> Sorry to call you on this one, but you CAN have multiple retentions on 
> one tape.  Under your Master Server Properties / MEDIA there is a 
> "Allow Multiple Retentions Per Media" check box which I am forced to
> use.  I've
> got 4 sites without robots that use Netbackup to write 2 week, 3 month
> and 1 year retention data to and without this I'd be up the creek!
> 
> I'm not sure who shelled out the big bucks for Netbackup for
> a site with
> no robot, but that's another debate entirely! =P
> 
> -Jonathan

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