You can use a single pool, and I recommend that you do, unless you
have a reason to use more than one. For example, if you had some data
that needed to go offsite, and some that couldn't, then you'd need two
pools.
NBU will by default break up the data onto different sets of tapes
(possibly all in the same pool) based on retention. You can have the
same pool in multiple robots/stu's (otherwise how would 'any available
storage unit' work?).
When you "readd" the tapes into the library, you won't be changing the
pool. You're actually 'moving' them, not 'adding' them. Since pool
has nothing to do with location (that's volume group), there's no need
to mess with changing the pool.
HTH,
L
William Enestvedt writes:
> This may be a simple question, but it's one I would appreciate some advice
> on as I set up our NBU environment: do I need to use Volume Pools to manage
> my tapes or not?
> My set-up consists of NBU 3.4.1 on Solaris 2.6; one master server (E420R)
> and one media server (Ultra 10), each with a Sun L9 (Quantum 8000, 9-tape
> library); 12 clients plus the two servers (for a total of 14).
> My question is this: I have the 14 clients divided into two groups, based
> on functionality, and I want them to back up to one or the other of the
> L9's. I created two Storage Units (one on each server, obviously), so this
> shouldn't be a problem. I plan to perform daily incremental back-ups, weekly
> full back-ups, and monthly full back-ups -- all on different retention
> schedules -- and my question is whether I need to create six Volume Pools
> (two servers times three retention periods), or will NBU handle this for me
> automatically?
> I intend to yank all the tapes every Monday and rotate them off-site, so
> I guess I'll re-add the tapes (when they've been sent back from off-site due
> to their age) into the Pool they were used in before...right? Or doesn't it
> matter?
> Many thanks for any suggestions. I have read through the books, but
> sometimes I get overwhelmed by the sheer bulk of it -- so pointers to a
> succinct explanation won't offend me.
> -wde
> --
> Will Enestvedt
> UNIX System Administrator
> Johnson & Wales University -- Providence, RI
> _______________________________________________
> Veritas-bu maillist - Veritas-bu AT mailman.eng.auburn DOT edu
> http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
--
Larry Kingery
3 kinds of people: those who can count & those who can't.
|
