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List: veritas-bu
Subject: Re: [Veritas-bu] 2 Masters and only 1 tape library - DR Exercise
From: Cris Rhea <crhea () mayo ! edu>
Date: 2009-06-30 18:11:01
Message-ID: 20090630181101.GF3097 () kaizen ! mayo ! edu
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On Tue, Jun 30, 2009 at 11:38:04AM -0600, Donaldson, Mark wrote:
> ACSLS, though, would fall into the category of "using another software
> package as an interface". I suspected ACSLS could do that but didn't
> want volunteer that since I don't have firsthand knowledge of it.
FYI--
If you use one of the large STK (now Sun) tape silos, you *have* to use
ACSLS-- it's not really an "extra". It's part of the silo control system
and how any product (e.g., Netbackup, HSM, etc.) requests tape
mounts/dismounts.
These silos have a Data Path (how your system connects to the back of a
tape drive for data transfer) and a Control Path (how your system requests
robotic tape-handling actions).
A Sun/STK SL8500 can also be hard-partitioned into 4 LSMs (ties a physical
group of tape slots with a physical set of drives).
At our site, we probably have 10+ separate systems sharing a single
SL8500 silo (with a single ACSLS interface). Trivial in Netbackup (just
don't tell it about anybody else's tapes).
Previous posting is quite correct-- you don't want to have multiple
systems "own" any given tape.
--- Cris
--
Cristopher J. Rhea
Mayo Clinic - Research Computing Facility
200 First St SW, Rochester, MN 55905
crhea@Mayo.EDU
(507) 284-0587
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