I'm pretty sure that you cannot update/change the devclass of a stgpool. I 
would just:

- Define the the new 3584 hardware
- Take all the tapes out of the 3583  and put them in the 3584.
- Update the devclass(es) to point to the 3584 library
- Update the devclass(es)if needed...MOUNTLIMIT,FORMAT,...
- Delete the old 3583 library/drive/path definitions.
- Run a checkin for STATUS=SCRATCH on the 3584, then repeat for STATUS=PRIVATE
- Check your paths if doing LAN free or NDMP backups for the new tape drive(s).

Bill Boyer


-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of 
PAC Brion Arnaud
Sent: Friday, October 13, 2006 3:16 AM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Re: SUSPECT:

Nicholas,

As  both libraries are using the same type of media, this should not be very 
difficult.

What I would do :

- define the new 3584 library + drives + path to the drives
- define new device class pointing to 3584
- stop any operation accessing tapes (reclamation, client schedules,
migrations)
- store the output of "q libv name_of_3583_libary" to know which volumes were 
private and which one were scratch
- checkout all volumes from 3583 library (checkout libv ... remove=bulk)
- checking of the volumes in 3584 library, taking care of specifying if they're 
private or scratch
- update the storage pools previously pointing to the 3583 library, to assign 
them the newly created 3584 device class (do not
forget database backups devclass !).
- if performing LAN free backups, review the storage agents configuration (same 
for possible library client TSM servers)
- enable tape operations again ...

This should do the trick !

Cheers.


Arnaud

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-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of 
RODOLFICH, NICHOLAS
Sent: Thursday, 12 October, 2006 23:14
To: ADSM-L AT VM.MARIST DOT EDU
Subject: SUSPECT:

Hello All,
        We are using a 3583(LTO1) that is not very reliable. We also have a 
3584(LTO1) that was freed up from elsewhere in the
company and I will be replacing the 3583 with the 3584. TSM version 5.3.0 on 
AIX 5.3.4
        What is the safest way to transition the data from the 3583 to the 
3584.  Both libraries will be online at one pint and I am
trying to devise a way to do this with TSM safely!
        Any assistance will be appreciated!!

Nicholas






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