ADSM-L

Re[2]: Disaster recovery

1997-04-18 13:49:00
Subject: Re[2]: Disaster recovery
From: Eric LEWIS <Eric.Lewis AT CCMAIL.ADP.WISC DOT EDU>
Date: Fri, 18 Apr 1997 12:49:00 CDT
     Bill: I assume you would delete the first copy pool once your second
     copy pool is in the safe site?  And if so that would free up the extra
     database space and volumes you mention?  Eric Lewis UW-Madison


______________________________ Reply Separator _________________________________
Subject: Re: Disaster recovery
Author:  "ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU> at IPNET
Date:    4/17/97 3:56 PM


Why don't you make another copypool which is collocated?

The thread of your messages is that you are worried about the number of
tapes which would be called in from a non-collocated copypool during a
client restore when the primary volumes are marked destroyed.  You can have
more than one copypool.  So, some weekend, created another stgpool
type=copy, backup your primary pools to it using 'numpr=a_large_number'.
Whether you define this pool as collocating or not it will be more or less
collocated because the input pool is collocated.  Send the new copypool
volumes offsite and set up your DR plans to use them.  Then update it to be
non-collocating and continue to do your backups to it.  After enough time
that the tail end is big enough to be worrisome, repeat the process.

You will use more volumes and your database will grow, but this may get you
what you are really after which is a mostly collocated set of offsite
volumes.

Bill Colwell
The Charles Stark Draper Laboratory
Cambridge Ma.


_________________________Reply Header_________________________
Author: ADSM-L AT vm.marist DOT edu
Subject: Disaster recovery
04-17-1997 04:17 PM

Hi all, yes I'm still fretting over Disaster Recovery.  If you lose
the site that has your MVS server, and about 50 servers that are in
that computer room... you have to take ALL your offsite tapes (which
belong to ALL your market offices and other buildings) to your hotsite
location, because I dont have a daily report showing which offsite
tapes belong to which servers?  Does anyone know if IBM is working on
a way to remedy this?  SHOW VOLUMEUSAGE doesn't work for copy pool
tapes.  I can run a (loooong running) job today that does a Q CON on
each offsite tape, then SAS's the list, and gives me a list.  But it's
such a pig I can't run that every day.  And if we lose the one location
with the mainframe and all the servers in that location, I can't run
the job.  It'd be too late then.  Does anyone know if they're going
to fix a way to report offsite tapes by node?    Does the DRM component
do this?
THANKS!
Julie Phinney
JULPHINN @ EMPHESYS.E-MAIL.COM
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