periodic soft error messages from TZ87

From: Andrew Reynolds <Andrew.Reynolds_at_novanet.ns.ca>
Date: Fri, 02 May 1997 09:32:35 -0300

Good day everyone, I'm having somewhat of a problem discovering the cause
of some error messages I'm seeing in our output from uerf.

The system in question is an AlphaServer 2100 4/200 running Digital Unix
3.0B, and the TZ87 is attached to the 2100's onboard SCSI, along with a
TLZ06, and an RRD43.

On what appears to be a weekly basis, I'm seeing a number of error messages
from the TZ87. The uerf output claims that they are all recoverable errors,
but I tend to be suspicious about any errors that I see in this file.

Before I include a sample from uerf, I will say that I have checked all my
cron jobs, and although the errors are occurring during a backup to the
TZ87, the same job runs without error to the same drive for the other 6
nights a week. (-:

Here's a sample from uerf, any insight or suggestions would be appreciated:

                                                  uerf version 4.2-011 (122)


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

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

EVENT CLASS ERROR EVENT
OS EVENT TYPE 199. CAM SCSI
SEQUENCE NUMBER 142.
OPERATING SYSTEM DEC OSF/1
OCCURRED/LOGGED ON Sat Apr 26 02:40:06 1997
OCCURRED ON SYSTEM mars
SYSTEM ID x00000009 CPU TYPE: DEC 2100
SYSTYPE x00000000
PROCESSOR COUNT 3.
PROCESSOR WHO LOGGED x00000000

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

CLASS x0001 TAPE
SUBSYSTEM x0000 DISK
BUS # x0000
                              x0010 LUN x0
                                        TARGET x2

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

ROUTINE NAME ctape_load_tape

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

ERROR TYPE Soft Error Detected (recovered)

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

DEVICE NAME DEC TZ87

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

                                        Active CCB at time of error

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

                                        CCB request completed with an error
ERROR - os_std, os_type = 11, std_type = 10


----- ENT_CCB_SCSIIO -----

*MY ADDR x81264728
CCB LENGTH x00C0
FUNC CODE x01
CAM_STATUS x0084 CAM_REQ_CMP_ERR
                                        AUTOSNS_VALID
PATH ID 0.
TARGET ID 2.
TARGET LUN 0.
CAM FLAGS x000000C0
                                        CAM_DIR_NONE
*PDRV_PTR x81264428
*NEXT_CCB x00000000
*REQ_MAP x00000000
VOID (*CAM_CBFCNP)() x0050DBB0
*DATA_PTR x00000000
DXFER_LEN x00000000
*SENSE_PTR x81264450
SENSE_LEN x40
CDB_LEN x06
SGLIST_CNT x0000
CAM_SCSI_STATUS x0002 SCSI_STAT_CHECK_CONDITION
SENSE_RESID x00
RESID x00000000
CAM_CDB_IO x00000000000000000000001B
CAM_TIMEOUT x00000E10
MSGB_LEN x0000
VU_FLAGS x0000
TAG_ACTION x00

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

                                        Error, exception, or abnormal
                                         _condition

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

                                        RECOVERED ERROR - Recovery action
                                         _performed

----- ENT_SENSE_DATA -----

ERROR CODE x0070 CODE x70
SEGMENT x00
SENSE KEY x0001 RECOVER ERR
INFO BYTE 3 x00
INFO BYTE 2 x00
INFO BYTE 1 x00
INFO BYTE 0 x00
ADDITION LEN x41
CMD SPECIFIC 3 x00
CMD SPECIFIC 2 x00
CMD SPECIFIC 1 x00
CMD SPECIFIC 0 x00
ASC x0A
ASQ x00
FRU x00
SENSE SPECIFIC x000000
ADDITIONAL SENSE
0000: 24004100 01C520F3 00000001 04E40002 *.A.$. ..........*
0010: 05070407 04160516 000034E7 00000001 *.........4......*
0020: 00000000 25000000 0033008A 00000000 *.......%..3.....*
0030: 7E250000 00005E3C 00000000 00000000 *..%~<^..........*

********************************* ENTRY 2.
*********************************

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

EVENT CLASS ERROR EVENT
OS EVENT TYPE 199. CAM SCSI
SEQUENCE NUMBER 141.
OPERATING SYSTEM DEC OSF/1
OCCURRED/LOGGED ON Sat Apr 26 01:28:41 1997
OCCURRED ON SYSTEM mars
SYSTEM ID x00000009 CPU TYPE: DEC 2100
SYSTYPE x00000000
PROCESSOR COUNT 3.
PROCESSOR WHO LOGGED x00000001

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

CLASS x0001 TAPE
SUBSYSTEM x0000 DISK
BUS # x0000
                              x0010 LUN x0
                                        TARGET x2

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

ROUTINE NAME ctape_iodone

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

ERROR TYPE Soft Error Detected (recovered)

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

DEVICE NAME DEC TZ87

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

                                        Active CCB at time of error

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

                                        CCB request completed with an error
ERROR - os_std, os_type = 11, std_type = 10


----- ENT_CCB_SCSIIO -----

*MY ADDR x81276F28
CCB LENGTH x00C0
FUNC CODE x01
CAM_STATUS x0084 CAM_REQ_CMP_ERR
                                        AUTOSNS_VALID
PATH ID 0.
TARGET ID 2.
TARGET LUN 0.
CAM FLAGS x00000080
                                        CAM_DIR_OUT
*PDRV_PTR x81276C28
*NEXT_CCB x00000000
*REQ_MAP x8127DC00
VOID (*CAM_CBFCNP)() x0050E360
*DATA_PTR x4002F000
DXFER_LEN x00008000
*SENSE_PTR x81276C50
SENSE_LEN x40
CDB_LEN x06
SGLIST_CNT x0000
CAM_SCSI_STATUS x0002 SCSI_STAT_CHECK_CONDITION
SENSE_RESID x13
RESID x00000000
CAM_CDB_IO x00000000000000008000000A
CAM_TIMEOUT x0000012F
MSGB_LEN x0000
VU_FLAGS x0000
TAG_ACTION x00

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

                                        Error, exception, or abnormal
                                         _condition

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

                                        RECOVERED ERROR - Recovery action
                                         _performed

----- ENT_SENSE_DATA -----

ERROR CODE x0070 CODE x70
SEGMENT x00
SENSE KEY x0001 RECOVER ERR
INFO BYTE 3 x00
INFO BYTE 2 x00
INFO BYTE 1 x00
INFO BYTE 0 x00
ADDITION LEN x25
CMD SPECIFIC 3 x00
CMD SPECIFIC 2 x00
CMD SPECIFIC 1 x00
CMD SPECIFIC 0 x00
ASC x0A
ASQ x00
FRU x00
SENSE SPECIFIC x000000
ADDITIONAL SENSE
0000: 24004000 01C520F3 00100101 0E000002 *._at_.$. ..........*
0010: 0000000C 00000000 00605C05 00000000 *.........\`.....*
0020: 00000000 00000000 00000000 00000000 *................*
0030: 7E250000 00005E3C 00000000 00000000 *..%~<^..........*

  
--
Andrew Reynolds, Systems Administrator, Novanet Inc.
Andrew.Reynolds_at_Novanet.ns.ca	http://novanet.ns.ca
Received on Fri May 02 1997 - 14:56:31 NZST

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