Hi, John.

First, if you don't have copies, you risk losing data if a tape goes bad.

Second, you can define a primary pool to be managed by DRM with:
set drmprimstgpool primarypoolname
Then you can get those ejected for you and put them in a closet, and you
have your copypool to send offsite.  You're much better off regarding
maintaining data integrity.

Third, as you archive into your diskpool, you don't have to go to primary
tape pool first.  You can copy your diskpool to copypool tape with:
backup stgpool diskpool copypool
You can then migrate diskpool to primary tape pool as per the Second point.
Otherwise you'll have those primary versions cluttering up your diskpool.

Alex Paschal
Storage Administrator
Freightliner, LLC
(503) 745-6850 phone/vmail


-----Original Message-----
From: J M [mailto:jm_seattle AT HOTMAIL DOT COM]
Sent: Thursday, December 12, 2002 10:36 AM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Re: BackupSet: Is there an efficient method to generate
backupsets


We are looking at ways to reduce tape consumption in our 3494 library- which
is being managed by 2 AIX TSM 4.2.2 servers. In general- we want to write
archive data (separate management classes and storage pools) to disk and
then directly to a tape copy pool, and then eject the media out of the
library for long term storage-- without having redundant copies of the
archive data sitting in a primary tape pool.--

Are there any suggestions on how to accomplish this-- since you can only
route disk pools to primary tape pools first? TSM 5.1 allows synchronous
writes to disk/tape/copy pools, but for TSM 4.2 I'm hoping to find a simple
solution--

All feedback is very much appreciated- - John