Re: Keeping only the current version in a pool

My understanding is that this feature is coming soon, possibly as soon
as TSM 5.4, which should be early in 2007.
 
In the meantime, what you can do is:

-Define your COPAN pool as a sequential tape pool

-Change your management classes to point to COPAN as the target
destination for backups   (or if you are keeping a DISK pool as your
target destination for backups, change the DISK NEXTSTGPOOL to COPAN)

-In the COPAN pool set NEXTSTGPOOL to the TAPE pool
-For COPAN, set your migration thresholds to something like highmig 90,
lowmig 70 
-For COPAN, set MIGDELAY to 7 and MIGCONTINUE to YES

Now your clients will back up to COPAN (or backup to DISK which migrates
to COPAN) 

When COPAN gets more than 90% full, it will migrate data out to tape.
BUT it will only take data that is more than 7 days old, unless it has
to take more to get down to the 70% threshold.

That will give you the most-recently-backed up data on COPAN, which I
realize is not what you asked for, but it's the best you can do right
now.  And ask Santa for the new feature for Christmas!

Wanda Prather
"I/O, I/O, It's all about I/O"  -(me)





-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of
Jones, Eric J
Sent: Monday, December 04, 2006 6:21 AM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Keeping only the current version in a pool

Good Morning.
We are running TSM 5.2.2 server on AIX 5.2 and the clients are all
running TSM 5.2.2 on Windows 2000/2003, AIX 5.1, 5.2 and Solaris 7, 8, 9
and 10.   A COPAN unit was purchased for us which is basically hard
drives that simulate tapes so we could get faster restores, etc..  What
we would like to do is setup the COPAN as one of the pools and only keep
the most recent version of the files(for fast restores), we also have
our regular tape library that we keep up to 90 versions(90 days) of the
file along with a COPYPOOL for our off-site storage.   I have not seen a
way to keep only the most recent version of a file on the COPAN unit and
have everything else deleted/expired.

Thanks
Eric.