You can run as many migrations as you have tape drives, but you should always
leave at least one drive free for doing restores. The command I believe is

update stg tapepool migpr=xx

Someone will correct me if this is wrong.

Paul Shields

In message "Migration from disk STG to tape STG", ADSM-L AT VM.MARIST DOT edu 
writes:

>We backup directly to disk storage pool then during the day we start migrating
>data from disk to tape.  Since our disk storage pool is 50G the migration to
>tape is not good enough with one process of migration.
>   My question: Can we run several migration processes at the same time?
>
>
>Thanks
>