Soft error on disk

From: <Samier.Kesou_at_bfa-berlin.de>
Date: Tue, 18 Dec 2001 10:20:29 +0100

Hello,

OS: Dec Unix 40E
Server: Alpha 1200
Disk: RZ29B

we have a system which has 2 soft errors on a disk. The server has been
booted
but that will not reset the error.
Can i reset that error myself or can i do something to repair the disk?

Because there is no soft- or hardware raid im worried about a total disk
failure

I will attach the dia -o full output for that disk

thanks in advance
Samier.

------- Unit Info -------
Bus Number 0.
Unit Number x0018 Target = 3.
                                     LUN = 0.
------- CAM Data -------
Class x00 Disk
Subsystem x00 Disk
Number of Packets 10.

------ Packet Type ------ 258. Module Name String

Routine Name cdisk_bbr_done

------ Packet Type ------ 256. Generic String

                                     bbr_start: Transient error at block
                                     number: 7960283

------ Packet Type ------ 261. Soft Error String

Error Type Soft Error Detected (recovered)

------ Packet Type ------ 257. Device Name String

Device Name DEC RZ29B (C) DEC0016

------ Packet Type ------ 256. Generic String

                                     Active CCB at time of error

------ Packet Type ------ 256. Generic String

                                     CCB request completed with an error

------ Packet Type ------ 1. SCSI I/O Request CCB(CCB_SCSIIO)
Packet Revision 76.

CCB Address xFFFFFC003FE22C80
CCB Length x00C0
XPT Function Code x01 Execute requested SCSI I/O
CAM Status xC4 CCB Request Completed WITH Error
                                     SIM Queue Frozen with this Error
                                     Autosense Data Valid for Target
Path ID 0.
Target ID 3.
Target LUN 0.
CAM Flags x00000442 SIM Queue Actions are Enabled
                                     Data Direction (01: DATA IN)
                                     Disable the SIM Queue Frozen State
*pdrv_ptr xFFFFFC003FE22928
*next_ccb x0000000000000000
*req_map xFFFFFC001B298700
void (*cam_cbfcnp)() xFFFFFC00004F9BC0
*data_ptr xFFFFFFFF8FB1E000
Data Transfer Length 65536.
*sense_ptr xFFFFFC003FE22950
Auotsense Byte Length 64.
CDB Length 10.
Scatter/Gather Entry Cnt 0.
SCSI Status x02 Check Condition
Autosense Residue Length x2E
Transfer Residue Length x00000000
(CDB) Command & Data Buf

          15--<-12 11--<-08 07--<-04 03--<-00 :Byte Order
 0000: 00000000 00009076 79000028 * (..yv.......*

Timeout Value x0000003C
*msg_ptr x0000000000000000
Message Length 0.
Vendor Unique Flags x0000
Tag Queue Actions x20 Tag for Simple Queue

------ Packet Type ------ 256. Generic String

                                     Error, exception, or abnormal
condition

------ Packet Type ------ 256. Generic String

                                     RECOVERED ERROR - Recovery action
                                     performed

------ Packet Type ------ 768. SCSI Sense Data
Packet Revision 0.

Error Code xF0 Current Error
                                     Information Bytes are Valid
Segment # x00
Information Byte 3 x00
            Byte 2 x79
            Byte 1 x76
            Byte 0 xDB LBA: x007976DB
Sense Key x01 Recovered Error
Additional Sense Length x0A
CMD Specific Info Byte 3 x00
                  Byte 2 x00
                  Byte 1 x00
                  Byte 0 x00
ASC & ASCQ x1701 ASC = x0017
                                     ASCQ = x0001
                                     Recovered Data with Retries
FRU Code xD0
Sense Key Specific Byte 0 x80 Valid Sense Key Data
                   Byte 1 x00
                   Byte 2 x01

Addition Sense Data Size Allocated by Driver

Count of valid bytes: 46.


          15--<-12 11--<-08 07--<-04 03--<-00 :Byte Order
 0000: 00000000 00000000 00000000 00000000 *................*
 0010: 00000000 00000000 00000000 00000000 *................*
 0020: 00000000 00000000 00000000 00000000 *................*
Received on Tue Dec 18 2001 - 09:22:09 NZDT

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