CAM SCSI errors

From: Derrick Miller <phuture_at_bigdog.fred.net>
Date: Mon, 3 Mar 1997 09:48:20 -0500 (EST)

I am running DU 3.2f on an AlphaServer 1000 4/266 w/ 64 MB RAM and a
TLZ09 4mm tape drive. Sometimes my backups work and sometimes they
don't. Lately, they don't work at all.

The uerf event log reports a bunch of these CAM SCSI errors every time
it fails:

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

EVENT CLASS ERROR EVENT
OS EVENT TYPE 199. CAM SCSI
SEQUENCE NUMBER 591.
OPERATING SYSTEM DEC OSF/1
OCCURRED/LOGGED ON Mon Mar 3 03:47:38 1997
OCCURRED ON SYSTEM mufasa
SYSTEM ID x00060011
SYSTYPE x00000000

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

CLASS x0001 TAPE
SUBSYSTEM x0000 DISK
BUS # x0000
                              x0018 LUN x0
                                        TARGET x3

In the archives, I found a suggestion to use a shorter SCSI cable - I'm
going to go try to dig one up from our box of VAX odds and ends.

If that doesn't work, what is the next step? Is this most definitely a
hardware problem that I should call Digital about, or is there a
possibility that tapes / software could be causing these errors?

Thanks,
Derrick Miller
Received on Mon Mar 03 1997 - 16:21:00 NZDT

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