Hi,

I'm running tsm 5.5.1.1 on win64, did a backup db to devclass drm
(devtype=file),and wanted to delete only that one dbbackup so I issued:

tsm: server>del volhist todate=today t=dbb dev=drm
ANR6978E DELETE VOLHISTORY: Invalid device class UNKNOWN.
ANS8001I Return code 3.

but, yes the deviceclass drm does exist:

Device       Device        Storage    Device       Format     Est/
Max     Mount
Class        Access           Pool    Type
Capacity     Limit
Name         Strategy        Count                               (MB)
---------    ----------    -------    ---------    ------
--------    ------
DISK         Random              4
DRM          Sequential          1    FILE         DRIVE
100.0        20
DRM-REMO-    Sequential          0    SERVER
100.0        20
 TE
T10KB-LO-    Sequential          4    ECARTRID-    DRIVE
1,843,20         6
 CAL                                   GE                         0.0
T10KB-RE-    Sequential          2    ECARTRID-    DRIVE
1,843,20         6
 MOTE                                  GE                         0.0

so, I must be doing something wrong, or is this a TSM error?

--
Met vriendelijke groeten/Kind regards,

Remco Post, PLCS
+31624821622