From: Derek Gatherer (d.gatherer@vir.gla.ac.uk)
Date: Fri Jan 09 2004 - 10:42:25 EST
Hi
I have salvaged an old Seagate STT20000N tape drive which uses Travan 20Gb
tapes. It's SCSI-connected to a DEC AlphaStation DS20 running 5.1B with
patch kit 1. It seems to successfully write to the tape media, but then
won't read back. For instance:
# restore -if /dev/tape/tape1
Tape read error: I/O error
is a typical error when trying to recover a dump. A similar error occurs
when trying to untar.
# tar -tf /dev/tape/tape1
tar: [offset 0]: I/O error
# mt -f /dev/tape/tape1 status
gives some errors, such as:
mt_erreg 0x5 Illegal CDB parameter
status 0x2A00 Device requeset illegal/unsupported
ASC/ASQ = 24/0 Invalid field in CDB
All suggestions gratefully received.
Full tape status follows:
------------------------------------
DEVIOGET ELEMENT CONTENTS
---------------- --------
category DEV_TAPE
bus DEV_SCSI
interface SCSI
device STT20000
adpt_num 0
nexus_num 8
bus_num 0
ctlr_num 3
slave_num 6
dev_name tz
unit_num 6
soft_count 0
hard_count 8
stat 0x1
DEV_BOM
category_stat 0x0
<unspecified density>
DEVGETINFO ELEMENT CONTENTS
------------------ --------
media_status 0x10001
BOM POS_VALID
unit_status 0x121
Ready 2_FM_Close Rewind Buffered
record_size 0
density (current) 0 BPI
density (on write) 0 BPI
Filemark Cnt 0
Record Cnt 0
Class 2 - RDAT
MTIOCGET ELEMENT CONTENTS
---------------- --------
mt_type MT_ISSCSI
mt_dsreg 0x1
DEV_BOM
mt_erreg 0x5 Illegal CDB parameter.
mt_resid 0
mt_fileno 0
mt_blkno 0
DEV_EEI_STATUS
version 0x2
status 0x2A00 Device requeset illegal/unsupported
flags 0x1000007
CAM_STATUS SCSI_STATUS SCSI_SENSE CAM_DATA
cam_status 0x4 CCB request completed with an err
scsi_status 0x2 SCSI_STAT_CHECK_CONDITION
scsi_sense_data (hex)
70 0 5 0 0 0 0 a
0 0 0 0 24 0 0 c0
0 2 0 0 0 0 0 0
0 0 0 0 0 0 0 0
0 0 0
ASC/ASQ = 24/0 Invalid field in CDB
_________________________
Derek Gatherer Ph.D. Cert.Ed.
Computer Officer
Institute of Virology
Church St.
Glasgow G11 5JR
Phone: +44 141 330 6268
Fax: +44 141 337 2236
Email: d.gatherer@vir.gla.ac.uk
Website: http://www.vir.gla.ac.uk
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