On 28/02/11, Jeremiah D. Jester (jjest AT u.washington DOT edu) wrote:
> We are considering switching to a different backup solution. Our
> problems seem similar, not fun.

Well, my problem is specifically a tape drive problem.
Have you tested your drive?

# mt -f /dev/nst0 rewind
# dd if=/dev/nst0 of=/dev/null bs=64512
83220+0 records in
83220+0 records out
5368688640 bytes (5.4 GB) copied, 90.3682 s, 59.4 MB/s
# dd if=/dev/nst0 of=/dev/null bs=64512
dd: reading `/dev/nst0': Input/output error
44630+0 records in
44630+0 records out
2879170560 bytes (2.9 GB) copied, 171.517 s, 16.8 MB/s

# kernel log
Feb 28 20:39:59 kernel: [15534.935073] st0: Sense Key : Medium Error [current]
Feb 28 20:39:59 kernel: [15534.935079] Info fld=0xfc00
Feb 28 20:39:59 kernel: [15534.935080] st0: Add. Sense: Unrecovered read error

# tapeinfo -f /dev/sg3
Product Type: Tape Drive
Vendor ID: 'QUANTUM '
Product ID: 'ULTRIUM 4       '
Revision: '2210'
Attached Changer API: No
SerialNumber: 'JN0823AMJ50251'

-- 
Rory Campbell-Lange
rory AT campbell-lange DOT net

Campbell-Lange Workshop
www.campbell-lange.net
0207 6311 555
3 Tottenham Street London W1T 2AF
Registered in England No. 04551928

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