BackPak H4.00 Troubleshooting and Messages Manual

Troubleshooting
20 BackPak H4.00 Troubleshooting & Messages
DSM/TC tape volume stuck INUSE or SELECTED state
After some abnormal processing on tape volumes catalogued in DSM/TC, the
involved tape volume might be stuck INUSE or SELECTED after the tape application
stopped.
When this happens, a retry on the same volume is rejected because it is “already in
use”. The HP Knowledge Base documents a TACL command that is not described in
the regular NonStop manual.
1. Be sure there is no other tape application running: stop the EMS Extractors
and wait the unload of tapes currently being accessed
2. Enter this command at TACL prompt logged with a user in the SUPER group:
MEDDEM 27
3. Verify the status of the volume :
MEDIACOM INFO TAPEVOLUME <label>, POOL *
Refer to the HP NonStop Knowledge Base for more explanations.
$ZSVR or MEDIACOM hang
When there are several tape connection errors during setup activities, sometimes
just when SCF DELETE TAPE is executed while there is some TAPE activity, $ZSVR
and MEDIACOM might hang and the tape system must be reset.
The symptom below is a strong indication of a tape system that must be reset.
18:33 \ETIWLAB INSPECT - Symbolic Debugger - T9673D40 - (08AUG05) System \E
18:33 \ETIWLAB Copyright Tandem Computers Incorporated 1983, 1985-1999
18:33 \ETIWLAB INSPECT TRAP 0 - Illegal address reference
18:33 \ETIWLAB 252,00,00049 $ZSVR #DELETE^DEVICE + %1120I
See the detailed procedure later in this chapter Tape subsystem reset procedure
Windows disk file “being used by another process”
A VTC might not be able to load a virtual volume because it is not able to open the
corresponding Windows disk file in a WINDISK Data store because the file is already
used.
Sample EMS message reporting this condition:
2010-12-07 12:52:39 \P05.$BBEXT ETINE T.100.100 3011 $BB EXT-
E3011 MountId: \P05.848. Error 3205 loa ding V11768 on WSRV2 379
$BTAP21 E3205 Mou ntId: \P05.848 for volume V11768. VTC
WSRV2379 returns bu sy storage conditio n: (BBSL) Error op ening
the WINFILE storage ( \\WSRV2379\P05_DS00_E\LBV11768.DAT - (The
process cannot access the file becaus e it is being used by
another process)