Bruno, 
 
     From the TSM Help for the Define stgpool command:
 
The server can perform simultaneous write to copy storage pools for the
     following operations:
        o Backup and archive operations by Tivoli Storage Manager
          backup-archive clients or application clients using the Tivoli
          Storage Manager API.
        o HSM migration operations by Tivoli Storage Manager for Space
          Management (HSM) clients.
        o Import operations that involve copying exported file data from
          external media to a primary storage pool associated with a copy
          storage pool list.

Simultaneous writing is NOT supported when migrating data between storage 
pools. You will have to rely on the Backup Stgpool command.
 
Regards, 
 
Paul van Dongen
MCSE
IBM Certified Deployment Professional - ITWS 8.2 e ITSM 5.2
Vanguard
http://www.vanguard-it.com.br
 

        -----Original Message----- 
        From: Bruno Melo - Suporte Informática [mailto:bruno AT 
SUPORTEINFORMATICA DOT COM] 
        Sent: Thu 5/5/05 16:24 
        To: ADSM-L AT VM.MARIST DOT EDU 
        Cc: 
        Subject: Migration -> Primary and Copy Pool
        
        

        Hi Fellows,
        
        The environment:
        
        TSM Server 5.1.9.5, AIX 4.3.3 ML 9
        Two 3580 LTO1 SCSI tape drives (manual)
        Both drives defined on the same library.
        
        A small costumer used to backup their data directly to tape storage 
pools, primary and copy, simultaneously coping the data to both storage pools. 
Until that point nothing weird, just define the copystg option on the primary 
and everything works like a charm. The strange bahavior appeared when, for 
performance reasons, they decided to backup their data to disk and than migrate 
it to tape, the migration to tape works fine, but only goes to one of the 
storage pools (the primary). Since, nothing has changed on the tape storage 
pools what the hell is going on? It seems like some limitation for the 
migration process, but it should work.  At least this is what the manuals show.
        I've checked the migprocess option to ensure that there was only one 
process, but nothing changed.
        The backup stg command works fine.
        Am I missing something?
        
        Atenciosamente,
        . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
. .
        BRUNO MELO
        Suporte Informática Ltda.
        e-mail: bruno AT suporteinformatica DOT com