decoding errlog for SCSI errors

From: Stephen Campbell <steve_at_avalon.dartmouth.edu>
Date: Tue, 07 Nov 1995 16:38:12 -0500

Our AXP 3000/400 has a SCSI disk on it that reports CAM SCSI errors several
times a day. It has been doing this for months but continues to run just fine
in all other respects. The disk is a DEC DSP3210S 435E. The OS is DEC Unix
3.2 Rev 214. The disk holds our news spool, so it is very busy. Iostat often
shows it approaching 90 tps. The uerf full output of the error is shown below.

I would like to know exactly what event or condition is being reported and what
it's significance is, if any. Thanks to anyone who can decode the errlog data.

                                                        Steve Campbell

********************************* ENTRY 1. *********************************

----- EVENT INFORMATION -----

EVENT CLASS ERROR EVENT
OS EVENT TYPE 199. CAM SCSI
SEQUENCE NUMBER 94.
OPERATING SYSTEM DEC OSF/1
OCCURRED/LOGGED ON Tue Nov 7 14:30:22 1995
OCCURRED ON SYSTEM dartvax
SYSTEM ID x00020004 CPU TYPE: DEC 3000
SYSTYPE x00000000

----- UNIT INFORMATION -----

CLASS x0022 DEC SIM
SUBSYSTEM x0000 DISK
BUS # x0001
                              x0068 LUN x0
                                        TARGET x5

----- CAM STRING -----

ROUTINE NAME ss_abort_done

----- CAM STRING -----

                                        SCSI abort tag has been performed
Received on Tue Nov 07 1995 - 23:04:40 NZDT

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