Check all densities in Device Config, Media and Storage Unit.
Example from our lab:
# bpstulist -L
Label: media1-hcart2-robot-tld-1
Storage Unit Type: Media Manager
Host Connection: media1
Number of Drives: 1
On Demand Only: no
Density: hcart2 (14)
Robot Type/Number: TLD (8) / 1
Max Fragment Size: 5000
Max MPX/drive: 4
# tpconfig -l
Device Robot Drive Robot Drive Device Second
Type Num Index Type DrNum Status Comment Name Path Device Path
robot 1 - TLD - - - - /dev/sg/c1t0l0
drive - 0 hcart2 1 UP - Drive000 /dev/rmt/0cbn
# vmquery -a -bx
media media robot robot robot side/ volume optical # mounts/ last assigned pool
ID type type # slot face group partner cleanings mount time time
---------------------------------------------------------------------------------------------------------------------------
A00000 HCART2 TLD 1 1 - 000_00001_ - 2 08/18/2010 17:16 08/18/2010 17:07 NetBackup
A00001 HCART2 TLD 1 2 - 000_00001_ - 2 08/18/2010 17:19 --- --- Scratch
A00002 HCART2 TLD 1 3 - 000_00001_ - 2 08/23/2010 10:56 08/18/2010 17:10 NetBackup
A00003 HCART2 TLD 1 4 - 000_00001_ - 1 08/18/2010 17:07 --- --- Scratch
A00004 HCART2 TLD 1 5 - 000_00001_ - 1 08/18/2010 17:09 --- --- Scratch
Also double-check the pool that is specified in the policy - you either need tapes in Scratch or in the pool that is required by the policy.
If you have a Scratch pool, verify that the pool is marked as 'scratch'.
# vmpool -listscratch
Scratch Pools
=============
Scratch