The Question is:
I have a tl891 library with a single TZ98 drive connected to a DS20E (SCSI
connection). No problem accessing tape-by-tape using MRU, but if I need to
access a number of tapes unattented (a BACKUP requireing >1 tape), this is not
sufficient. I installed an
d configured MDMS to intercept and react on the OPCOMmessages but it fails.
OPCOM messages are either not signalled or reacted upon. A manual LOAD VOLUME
command only changes data in the MDMS database but will NOT access the
library, seems to wait for som
ething but I can't figure out what. Any idea what to look for?
The Answer is :
BACKUP can normally sequentially load and unload tapes from a tape
library, assuming that the library itself permits such an operation.
It appears you have encountered a problem with MDMS software, or
that you do not have the TL891 loader configured correctly within
MDMS, or that you have a problem such as a SCSI unit number collision
with the GK-based jukebox control access. (Loaders such as the TL891
can be operated as a stacker or as a jukebox. The latter generally
provides more flexibility. OpenVMS software uses the GK driver to
access and control the jukebox.)
Please check the MDMS documentation, and please check with the Compaq
Customer Support Center for assistance in resolving this problem.