Date: Sat, 31 May 1997 15:57:24 -0400 (EDT) From: "Russell D. Murphy" <rdmurphy@dunquin.bu.edu> To: hardware@FreeBSD.org Subject: Tape drive problems (Archive Anaconda) Message-ID: <199705311957.PAA00744@dunquin.bu.edu>
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I'm trying to backup up my system (so I can upgrade to 2.2.x, among
other reasons). However, my tape drive is acting up:
it seems to have trouble backing up anything of any size and then
seems to render the tape it was using unreadable (and unwritable).
Although I haven't backed up since Jan. (which was when I installed
2.1.6) I have used the drive regularly since last summer.
I have an NCR controller and an Archive Anaconda QIC-1350
tape drive:
(ncr0:6:0): "ARCHIVE ANCDA 2750 28077 -003" type 1 removable SCSI 2
I generate these problems with dump or tar:
# pwd
/A/home
# tar -cvf /dev/rst0 rdmurphy
(long file listing)
tar: can't write to /dev/rst0: Input/output error
# tar -tvf /dev/rst0
tar: read error on /dev/rst0: Input/output error
# cd rdmurphy
# tar -cvf /dev/rst0 illeg
(shorter file listing, with a tape drive noise at end, no err.)
# tar -tvf /dev/rst0
tar: read error on /dev/rst0: Input/output error
This produces dmesg messages such as:
ncr0: restart (ncr dead ?).
sd0(ncr0:0:0): FAST SCSI-2 100ns (10 Mb/sec) offset 8.
sd0(ncr0:0:0): UNIT ATTENTION asc:29,0
sd0(ncr0:0:0): Power on, reset, or bus device reset occurred
, retries:4
st0(ncr0:6:0): 200ns (5 Mb/sec) offset 8.
I'd be quite grateful for any suggestions that anyone can offer.
I'm overdue for a backup as it is and I'm also reluctant to upgrade
without a recent backup.
Thanks-
Russ Murphy
more system info.:
------------------
FreeBSD 2.1.6-RELEASE #0: Sat May 31 12:56:47 EDT 1997
rdmurphy@dunquin.bu.edu:/usr/src/sys/compile/DUNQUIN
CPU: 133-MHz Pentium 735\90 or 815\100 (Pentium-class CPU)
real memory = 16777216 (16384K bytes)
avail memory = 15114240 (14760K bytes)
ncr0 <ncr 53c810 scsi> rev 2 int a irq 11 on pci0:12
mapreg[10] type=1 addr=0000e400 size=0100.
mapreg[14] type=0 addr=f7ff0000 size=0100.
reg20: virtual=0xf4105000 physical=0xf7ff0000 size=0x100
ncr0: restart (scsi reset).
ncr0 scanning for targets 0..6 (V2 pl23 95/09/07)
ncr0 waiting for scsi devices to settle
(ncr0:0:0): "FUJITSU M1606S-512 6234" type 0 fixed SCSI 2
sd0(ncr0:0:0): Direct-Access
sd0(ncr0:0:0): FAST SCSI-2 100ns (10 Mb/sec) offset 8.
1041MB (2131992 512 byte sectors)
sd0(ncr0:0:0): with 3457 cyls, 6 heads, and an average 102 sectors/track
(ncr0:3:0): "SONY CD-ROM CDU-76S 1.1c" type 5 removable SCSI 2
cd0(ncr0:3:0): CD-ROM
cd0(ncr0:3:0): 200ns (5 Mb/sec) offset 8.
cd0(ncr0:3:0): UNIT ATTENTION asc:28,0
cd0(ncr0:3:0): Not ready to ready transition, medium may have changed
cd present.[400000 x 2048 byte records]
(ncr0:6:0): "ARCHIVE ANCDA 2750 28077 -003" type 1 removable SCSI 2
st0(ncr0:6:0): Sequential-Access
st0(ncr0:6:0): 200ns (5 Mb/sec) offset 8.
density code 0x0, drive empty
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