Dave,
Even if you mirror data to DASD I would still recommend that you still
backup to tape.
Tape introduces its own challenges, but it has the benefit that it is
designed to be taken off-line.
Being off-line makes it much harder to accidently or maliciously delete, and
in the event that you are ever in litigation the fact that it is off-line
and off-site is often in your interests.
A vault on the other side of the campus would not satisfy any credible
business continuity auditor (unless your campus is at least several miles
across).
Gerard
-Original Message-
From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] On
Behalf Of Gibney, Dave
Sent: Friday, October 13, 2006 2:46 AM
To: IBM-MAIN@BAMA.UA.EDU
Subject: Storage Philosophy Question
As a State agency, it's the time we ask for money for the
upgrades/replacements for the next year or two.
Our z800-0B1 lease runs out and so we'll be looking at z9BC. We also
have EMC 8230(?) dasd and 3590-A tape drives. A couple terabytes
active
data, and more in migration/backup, etc. We're pretty small.
We have no mirroring at this time, we move tapes back at forth from
a
vault on the other side of campus. The administration seems willing to
allocate funds for a more robust Business Continuation infrastructure.
It's been suggested by the Operations Manager and also my boss(es)
that we move to a tapeless model. That is that we acquire sufficient
dasd and establish a mirror offsite. We would cease DFHSM migration
and
do FDR or DFHSM version backups to dasd.
It appears the tape might be more expensive than disk. And you
don't
need people to mount disks. We don't have a silo.
The questions I've been asked to ask are: Is anyone else doing
something like this idea? Does it seem feasible? Or is it a really bad
idea?
I'm asking here because this seems a place to get some good
thoughts
on this fast. My Director needs to talk with her VP next week, or
maybe
the week after.
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