I just experienced the same message.  I had to increase MAXIMUM SCRATCH
VOLUMES ALLOWED.

> -----Original Message-----
> From: Paolo, Michael (MBS) [SMTP:Michael.Paolo AT MORTGAGESVCS DOT COM]
> Sent: Friday, June 26, 1998 2:47 PM
> To:   ADSM-L AT VM.MARIST DOT EDU
> Subject:      insufficient space in subordinate storage pool.
>
> Has anyone seen these errors?
>
> I have tried the following to correct the problem:.
>
> Increased DB by 1500mb
> Increased Backup Storagepool by 40gigs
> Audited entire DLT library volume
> Relabeled Bad or Unreadable Tapes
>
> Space Reclamation will not move files nor will migration.
>
> Here is a printout of the console:
>
> ANR1000I Migration process 32 started for storage pool BACKUPPOOL.
> ANR1025W Migration process 32 terminated for storage pool BACKUPPOOL -
> insufficient space in subordinate storage pool.
> ANR0985I Process 32 for MIGRATION running in the BACKGROUND completed
> with
> completion state FAILURE at 15:35:33.
> ANR1002I Migration for storage pool BACKUPPOOL will be retried in 60
> seconds.
> ANR1003I Migration retry delay ended; checking migration status for
> storage
> pool BACKUPPOOL.
> ANR0984I Process 33 for MIGRATION started in the BACKGROUND at
> 15:35:55.
> ANR1000I Migration process 33 started for storage pool BACKUPPOOL.
> ANR1025W Migration process 33 terminated for storage pool BACKUPPOOL -
> insufficient space in subordinate storage pool.
> ANR0985I Process 33 for MIGRATION running in the BACKGROUND completed
> with
> completion state FAILURE at 15:35:55.
> ANR1002I Migration for storage pool BACKUPPOOL will be retried in 60
> seconds.
> ANR1003I Migration retry delay ended; checking migration status for
> storage
> pool BACKUPPOOL.
> ANR0984I Process 34 for MIGRATION started in the BACKGROUND at
> 15:36:11.
> ANR1000I Migration process 34 started for storage pool BACKUPPOOL.
> ANR1025W Migration process 34 terminated for storage pool BACKUPPOOL -
> insufficient space in subordinate storage pool.
> ANR0985I Process 34 for MIGRATION running in the BACKGROUND completed
> with
> completion state FAILURE at 15:36:11.
> ANR1002I Migration for storage pool BACKUPPOOL will be retried in 60
> seconds.