You are confusing storagepool backup and migration. They are seperate
operations. You can do the backup stgpool command between storage pools at any
time. As far as I am aware, the pools can be primary or copypools, and the
media does not have to be the same. I recently backed up a disk storage pool to
a primary tape storage pool with no problem.

You an also use migrate, but that removes the data from the first pool during
the migration. If you are using migration, then the migration process will be
kicked off as soon as you set the migration thresholds.

Peter Gathercole
Open Systems Consultant

Michael Richard wrote:

>      I need advice with the best way to move data that is currently on 3490
>      cartridges to DLT. We are currently setup as:
>
>      Backuppool     primary disk pool         (SSA disks)
>      Backuptape     Primary onsite tape pool  (3490 cartridges)
>      Copytape       Copy offsite tape pool    (3490 cartridges)
>
>      I defined :
>
>      Backup-DLT-tape primary onsite tape pool (DLT)
>      Copy-DLT-tape   copy offsite tape pool   (DLT)
>
>      I was going to update Backuptape to have the migration stgpool be
>      Backup-DLT-tape and then set migration down to 0% for high and low.
>      Once that is done then issue a "backup stgpool Backup-DLT-tape
>      Copy-DLT-tape". Once this is complete I believe I should be able to
>      delete the Backuptape and Copytape stgpools and be using just the
>      Backup-DLT-tape and Copy-DLT-tape.
>
>      Is this correct and the best way to do this ?
>      Or should I update Backuptape for the reclaim stgpool to be
>      Backup-DLT-tape and then set reclaim to be at 0%. Followed once
>      completed by the "backup stgpool Backup-DLT-tape Copy-DLT-tape"
>
>      I am looking for the easiest way to move all the data and also not
>      loose any of it.
>
>      Thanks for any suggestion or info from all in advance.
>
>      ----------------------------------------------------------------------
>      Mike Richard Jr.
>      Enterprise Storage Admin.
>      Compuware (248) 737-7300  ext 6061
>      The content is completely mine and does not reflect on my company at
>      all.
>      ----------------------------------------------------------------------