No problem other than time, and the fact that while you are trying to
keep your sanity restoring the 150 indexes, you are also trying to
restore the actual servers that had data on them. Some index restores
can take 45 minutes to an hour to restore, if not longer (think large
filesystems with 1 million+ files) Do the math on that. Even 150 indexes
at 15 minutes would take over a day.
Timing is everything - everyone is fighting for tape drives and tape
space in your library. Something I didn't think about pre-disaster,
was what would happen if 10 people are trying 10 different restores, on
50-100 different tapes, and you are trying to restore indexes. You
better have a large enough library to load all of your tapes, otherwise,
you spend a lot of time moving tapes in an out of the library.
Additionally, if you think you can get away with fewer drives, you
better re-think it. This is something we changed in our DR plan. We now
have multiple sites with either identical, or very similar, libraries
that are easily upgradeable with additional drives, and or, slots - and
capable of running multiple backup servers, and storage nodes, through
them.
David M. Browning Jr.
IT Project Coordinator Enterprise Backups and Help Desk
-----Original Message-----
From: EMC NetWorker discussion [mailto:NETWORKER AT LISTSERV.TEMPLE DOT EDU] On
Behalf Of A Darren Dunham
Sent: Wednesday, February 11, 2009 6:57 PM
To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
Subject: Re: [Networker] Newbie question: Networker 7.1.4 - scanning in
tapes?
On Wed, Feb 11, 2009 at 06:37:03PM -0600, Browning, David wrote:
> Speaking from a person that has had to do this (Hurricane Katrina), I
> sure wish EMC/Legato would come up with a way to do a backup (and
> recover) of both indexes and media databases. Certainly in this day
and
> age, there should be some kind of way to do it.
The backup and recover should be well covered (mmrecov). But merging
foreign media informtion into an existing media database isn't.
> There's nothing like being stressed out beyond belief - think any
> disaster -, and then having to recover 150 indexes - and that's after
> you rebuilt your Networker server, and done the mmrecov.
>
> EMC/Legato needs to learn to build a better mouse trap. (my opinion)
Won't disagree, but what was the particular problem with recovering the
file indexes that you had?
--
Darren
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