Question about how this scenario plays out....

Client starts an archive backup of a database to server at 1700 from cron
job. Archive is straight to tape. Uses all mountpoints assigned to it (4).

Client then starts a scheduled incremental "system-level" backup at 1800
while original cron'd backup is still running. Incremental goes to diskpool.
Diskpool is at 98% utilized, but 0.2 % migratable. Cache is on.

Incremental fails due to media mount not possible.

Does TSM consider the connection to the diskpool as an extra mount point and
therefore does not allow it because the client is already using its max
number of mount points (4) on the original archive?

TSM Server is AIX 4.3.3 ML10 running TSM V5.1.5
TSM Client is AIX 4.3.3 ML9 running TSM V5.1.5.
Library is a 3494, 6 drives.