Don't forget to update any copygroups that may have a DESTINATION= of a DLT
tape pool...

If you can afford, and are not in a hurry, just point all the new backup
data to the SDLT tape pools and leave the old DLT tape sitting there. The
data will start to go away with expiration and after a time period, like
your retention policy for the domains, move the remaining data to the new
SDLT pools with the MOVE DATA STG= command.

If there's no hurry to get the data moved over, just leave it alone for a
while. Then move it. Less data to move.

Bill Boyer
"I haven't lost my mind -- it's backed up on tape somewhere." - ???

-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU]On Behalf Of
Kauffman, Tom
Sent: Tuesday, March 25, 2003 11:48 AM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Re: Old data Migration


As near as I can remember it, here's the way I moved from DLT to LTO (should
pretty well match up).

1) Define your new SDLT tape pools
2) Make these pools the 'next pool' for both your disk pools AND the DLT
tape pools
3) Update your library to set ALL DLT tape to private (no scratch DLT tapes
-- I just checked them out)
4) Depending on time constraints -- use a mix of storage pool reclaim and
move data

All new backups will go to SDLT; all reclaims and migrations will go to SDLT
as long as there are no available DLT scratch tapes. Your storage pool
backups will make the trip as the data moves to the new tape storage pools,
freeing up your off-site DLT tape.

My move took about two weeks from the start, for about 480 DLT tapes to 120
LTO; part of the time-delay was allowing some 8 and 10 day retention
archives to just die a natural death in DLT format.

Tom Kauffman
NIBCO, Inc

-----Original Message-----
From: Stanfield Alejandro [mailto:AStanfie AT PECOM DOT COM]
Sent: Tuesday, March 25, 2003 11:03 AM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Old data Migration


> Hi TSMers!
>
We currently have a DLT library and recently bought a new SDLT library which
we plan to use as the main storage device, the question I have is which is
the best for moving the data from the old tapes to the new ones?
- Using move data
- Setting a new storage pool in the chain and migrating all data
- Moving all tapes into the new lib and setting them readonly

What's your experience?

> Regards
> Alex
>