We have a TRU Cluster V5.1A node. It was not reachable and nothing was getting displayed on the screen. Tried to ssh but no help. Hence rebooted the cluster node and it has come online. In the logs we found few error events. Please find the attachment for the relevant logs.
Logs show error event pertaining to (B9 T0 L0) TAPE and DEC SIM. So looks like the tape library connected to host has some problem. But not sure what DEC SIM is.
EVENT CLASS ERROR EVENT OS EVENT TYPE 199. CAM SCSI SEQUENCE NUMBER 15231. OPERATING SYSTEM DEC OSF/1 OCCURRED/LOGGED ON Sat Apr 24 10:06:19 2010 OCCURRED ON SYSTEM bwgc559 SYSTEM ID x000B0022 SYSTYPE x00000000 PROCESSOR COUNT 2. PROCESSOR WHO LOGGED x00000000
----- UNIT INFORMATION -----
CLASS x0001 TAPE SUBSYSTEM x0001 TAPE BUS # x0009 x0240 LUN x0 TARGET x0
The other members did not recr any relevant errors. And the Tape Library is quite old. The tape backupruns for hours and during the backup , the system gets very much occupied as per the observation. So we felt that would have hanged the system.
Examine the binary.errlog SCSI events using DECevent rather than uerf - DECevent gives much more information about the event(s), and it -might- shed some light on what happened.
