Matt --

If you're archiving the filesystems, run multiple archives in parallel
direct to tape. You should then be able to restore with the same
parallelism. If you're doing backups, try co-locating by filespace --
but you'll probably still run into media waits on the restore. Depending
on the tape technology, these waits should not be lengthy.

Becky --

I run four or five sessions of TDP/R3 direct to tape using the same
management class and storage pool. The backups run about 2.5 to 3 hours
for 900 GB or more of data. My restores are either to test environments
that are only allowed three sessions but manage to complete in about 8
hours, or to my production environment at our D/R hotsite. In the case
of the hotsite, we are working with only two tapes from the off-site
copies and the restore runs about 6 hours even with the occasional media
wait.

These processes work for us; YMMV.

Tom Kauffman
NIBCO, Inc

-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of
Davidson, Becky
Sent: Wednesday, June 23, 2004 10:36 AM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Re: anyone have script for multi-session/multi-filespace
restore?

We were told that the best way to do this at least with Tivoli Data
Protection for SAP R/3 was to have each thread go to a different storage
pool that way no thread will ask for a tape that another thread is
using.
We thought that was silly and pushed back.  Hopefully it will be fixed.
Becky

-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of
MC
Matt Cooper (2838)
Sent: Wednesday, June 23, 2004 10:20 AM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: anyone have script for multi-session/multi-filespace restore?


Hello all,
       I received no responses from my previous post    'Need your
thoughts on best RESTORE approach'.  So with just my own research I have
found that TSM does NOT have anything to manage a multi-filespace,
multi-session restore that is not relying on the user to prevent 2
sessions
asking for the same tape.  (please tell me I am wrong)
     ( reference the section in the (AIX) client book on LARGE RESTORES,
NO
QUERY,  it is set up for a single filespace (NO WILDCARDS) In my case I
will
have 60+ filesspaces on 6+ tapes with 8 tape drives available and have
to
start from the command line (actually scripted) to start a session for
each
tape drive.  The real problem is preventing more than 1 session from
asking
for the same tape.  I believe I can find the necessary information to
write
the script from quering the volumeusage  and volume tables and doing the
restore comands from there. I would guess I am not the first one to
approach
this problem and hate to spend my time trying to script this when
someone
else, (who is most likely much better at scripting than me) has already
done
it.

Does anyone have a script that will arrange/control the submission of
multiple restore sessions to avoid having sessions having to wait for
other
sessions to finish using a tape?


Thanks in advance
Matt