well, after upgrading to 5.1 we have this peculiar problem:
a recclamation in one of our libraries fails.
- reclamation starts
- one cartridge is loaded
- get ANR1081W
- process cancels

anyone seen this?

Library Name     Drive Name       Device Type     On-Line
------------     ------------     -----------     -------------------
IBM3494A         3590RMT0         3590            Yes
IBM3494A         3590RMT1         3590            Yes

08/11/03   09:32:44  ANR0985I Process 2 for SPACE RECLAMATION running
in the  BACKGROUND completed with completion state FAILURE at
         09:32:44.
08/11/03   09:32:44  ANR1081W Space reclamation terminated for volume
000482 -    storage media inaccessible.
08/11/03   09:32:44  ANR1042I Space reclamation for storage pool
NTBKCOPY will   be retried in 60 seconds.

08/11/2003 9:30:56 AM ANR8447E No drives are currently available in
library IBM3494A.
08/11/2003 9:30:56 AM ANR1401W Mount request denied for volume 000469 -
mount failed.
08/11/2003 9:31:36 AM ANR8447E No drives are currently available in
library IBM3494A.
08/11/2003 9:31:36 AM ANR1401W Mount request denied for volume 000469 -
mount failed.
08/11/2003 9:31:36 AM ANR8447E No drives are currently available in
library IBM3494A.
08/11/2003 9:31:36 AM ANR1401W Mount request denied for volume 000469 -
mount failed.
08/11/2003 9:32:33 AM ANR1081W Space reclamation terminated for volume
000482 - storage media inaccessible.