cam scsi errors

From: Dave Carter <carter_at_mailhost.lanl.gov>
Date: Tue, 30 Jan 1996 08:22:43 -0700 (MST)

i started getting lots of cam scsi errors this morning, and am trying
to figure out what they mean. can someone help me out before my
system dies?

i have the following hardware:

                                        DEC OSF/1 V3.2A (Rev. 17); Wed Jan 3
                                         _10:59:30 MST 1996
                                        physical memory = 64.00 megabytes.
                                        available memory = 54.31 megabytes.
                                        using 238 buffers containing 1.85
                                         _megabytes of memory
                                        tc0 at nexus
                                        tcds0 at tc0 slot 4
                                        scsi0 at tcds0 slot 0
                                        rz0 at scsi0 bus 0 target 0 lun 0 (DEC
                                         _ RZ26L (C) DEC 440C)
                                        rz1 at scsi0 bus 0 target 1 lun 0
                                         _(MICROP 1991-27MZ Q4D HT02)
                                        tz5 at scsi0 bus 0 target 5 lun 0
                                         _(Quantum DLT4700 CA19)
                                        ln0: DEC LANCE Module Name: PMAD-BA
                                        ln0 at tc0 slot 5
                                        ln0: DEC LANCE Ethernet Interface,
                                         _hardware address: 08-00-2B-BE-F4-49
                                        scc0 at tc0 slot 5
                                        bba0 at tc0 slot 5
                                        fb0 at tc0 slot 6
                                         1280X1024
                                        tza0 at tc0 slot 0
                                        scsi1 at tza0
                                        rz9 at scsi1 bus 1 target 1 lun 0
                                         _(SEAGATE ST410800N 0016)
                                        rz10 at scsi1 bus 1 target 2 lun 0
                                         _(SEAGATE ST410800N 0019)
                                        rz11 at scsi1 bus 1 target 3 lun 0
                                         _(MICROP 1991-27MZ 1020S HT01)
                                        DEC 3000 - M300LX system
                                        Firmware revision: 6.0
                                        PALcode: OSF version 1.35
                                        dli: configured
       
that is---2 scsi interfaces, one with 3 9GB disks, and the other with
an RZ26L, a 9 GB disk and a tape drive. which of these could be
generating these errors, and how can i pinpoint the problem? any help
would be appreciated. (hopefully my system won't die completely
before i can figure it out.) also, i'm running advfs, if that makes
any difference.

the syslog entries are listed first, followed by the entry from uerf.

                                                - dave



Jan 30 08:12:13 mustang vmunix: advfs I/O error: setId 0x2fd85b2d.000af462.2.8002 tag 0x0000da86.8001u page 56
Jan 30 08:12:13 mustang vmunix: vd 1 blk 17094464 blkCnt 128
Jan 30 08:12:13 mustang vmunix: read error = 5
Jan 30 08:12:14 mustang vmunix: advfs I/O error: setId 0x2fd85b2d.000af462.2.8002 tag 0x0000da86.8001u page 64
Jan 30 08:12:14 mustang vmunix: vd 1 blk 17094592 blkCnt 128
Jan 30 08:12:14 mustang vmunix: read error = 5
#
#


                                               uerf version 4.2-011 (122)


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

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

EVENT CLASS ERROR EVENT
OS EVENT TYPE 199. CAM SCSI
SEQUENCE NUMBER 895.
OPERATING SYSTEM DEC OSF/1
OCCURRED/LOGGED ON Tue Jan 30 08:08:56 1996
OCCURRED ON SYSTEM mustang
SYSTEM ID x00020007 CPU TYPE: DEC 3000
SYSTYPE x00000000

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

CLASS x0000 DISK
SUBSYSTEM x0000 DISK
BUS # x0001
                              x0050 LUN x0
                                        TARGET x2

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

ROUTINE NAME cdisk_bbr_done

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

                                        cdisk_bbr_read: Bad block ok no BBR
                                         _action bad block number: 104

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

ERROR TYPE Soft Error Detected (recovered)

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

DEVICE NAME UNKNOWN

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

                                        Active CCB at time of error

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

                                        CCB request completed w/out error
ERROR - os_std, os_type = 11, std_type = 10


----- ENT_CCB_SCSIIO -----

*MY ADDR x8284FB28
CCB LENGTH x00C0
FUNC CODE x01
CAM_STATUS x0001 CAM_REQ_CMP
PATH ID 1.
TARGET ID 2.
TARGET LUN 0.
CAM FLAGS x00001840
                                        CAM_DIR_IN
                                        CAM_SIM_QFREEZE
                                        CAM_SIM_QHEAD
*PDRV_PTR x8284F828
*NEXT_CCB x00000000
*REQ_MAP x00000000
VOID (*CAM_CBFCNP)() x00461AB0
*DATA_PTR x82865400
DXFER_LEN x00000200
*SENSE_PTR x8284F850
SENSE_LEN x40
CDB_LEN x0A
SGLIST_CNT x0000
CAM_SCSI_STATUS x0000 SCSI_STAT_GOOD
SENSE_RESID x00
RESID x00000000
CAM_CDB_IO x000000010000B4719F000028
CAM_TIMEOUT x0000003C
MSGB_LEN x0000
VU_FLAGS x0000
TAG_ACTION x00

********************************* ENTRY 2. *********************************
Received on Tue Jan 30 1996 - 17:10:09 NZDT

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