CAM SCSI errors

From: Robert Schneider <robert_at_pe.utexas.edu>
Date: Fri, 20 Jun 2003 21:47:56 -0500 (CDT)

Hi:

About a week ago we had an unplanned power outage that has affected one
Seagate ST39173W 9GB drive. The disk is attached to a Compaq XP1000
running OSF 4.0E. Since the power failure I haven't been able to get the
drive online and am sort of stumped as to whether the disk is dead or if
it still might be usable in some part. When booting the disk shows up on
the console during boot time but returns an error code stating it is not
ready. I then used scu from a command line prompt to try and verify the
media and got the following:

# scu -f /dev/rrz8c verify media
scu: 'read capacity' failed, EIO (5) - I/O error
scu: Sense Key = 0x2 = NOT READY - Logical unit is NOT ready,
     Sense Code/Qualifier = (0x4, 0) = Logical unit not ready, cause not
reportable

The error log then shows:

# uerf -R | more
                                                  uerf version 4.2-011
(122)


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

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

EVENT CLASS ERROR EVENT
OS EVENT TYPE 199. CAM SCSI
SEQUENCE NUMBER 112.
OPERATING SYSTEM DEC OSF/1
OCCURRED/LOGGED ON Fri Jun 20 21:31:58 2003
OCCURRED ON SYSTEM marathon
SYSTEM ID x00080022
SYSTYPE x00000000

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

CLASS x0000 DISK
SUBSYSTEM x0000 DISK
BUS # x0001
                              x0040 LUN x0
                                        TARGET x0


Any ideas or suggestions on where to go from here?

Thanks!

Robert Schneider

Robert R. Schneider email: robert_at_pe.utexas.edu
Department of Petroleum and Geosystems Engineering phone: +1 512 471 3225
The University of Texas at Austin fax: +1 512 471 9605
Received on Sat Jun 21 2003 - 02:48:42 NZST

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