Not sure what you're running into here -- I just use one copygroup/storage
pool, and run to five tape drives concurrently, with no cross-mounting of
tapes.

Tom Kauffman
kauffmant AT nibco DOT com

> -----Original Message-----
> From: Glen Walker [SMTP:Glen.Walker AT TELUS DOT COM]
> Sent: Monday, March 15, 1999 2:00 AM
> To:   ADSM-L AT VM.MARIST DOT EDU
> Subject:      Behaviour of direct-to-tape backup
>
> I've been experimenting with a direct to tape backup of a 200 GB database
> using Backint and going directly to tape storage pools. I have 4 3590 tape
> drives in a 3494 tape library.
>
> I set the Backint program to start 4 sessions and each session used a
> management class with a copy group whose output was to one of two storage
> pools. That is, two copygroups went to one pool two to the other. I was
> surprised to see that ADSM would start four sessions, but two of those
> sessions would be waiting for tape mounted by the other sessions.  Does
> this
> mean that to make use of all four tape drives simultaneously I need to
> have
> each copygroup go to a unique tape storage pool? (Collocation is off on
> the
> two pools I was using).
>
>
> Glen Walker
> Unix System Administrator
> TELUS Communications
> Glen.Walker AT telus DOT com <mailto:Glen.Walker AT telus DOT com>      (403) 
> 441-7606