Date: Wed, 23 Jul 2003 16:11:11 -0700 From: David Bear <David.Bear@asu.edu> To: freebsd-questions@freebsd.org Subject: tape errors Message-ID: <20030723161111.E6921@asu.edu>
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I'm beginning to wonder if my tape device or tape is going bad.
AFter a backup run tar exists with error
tar tvzf /dev/nsa0 > t2
tar (child): read error on /dev/nsa0 : Input/output error
gzip: stdin: decompression OK, trailing garbage ignored
tar: Unexpected EOF on archive file
checking status of the tape gives me
mt status
Mode Density Blocksize bpi Compression
Current: 0x26:DDS-4 512 bytes 97000 disabled
---------available modes---------
0: 0x26:DDS-4 512 bytes 97000 DCLZ
1: 0x26:DDS-4 512 bytes 97000 DCLZ
2: 0x26:DDS-4 512 bytes 97000 DCLZ
3: 0x26:DDS-4 512 bytes 97000 DCLZ
---------------------------------
Current Driver State: at rest.
---------------------------------
File Number: 1 Record Number: 0 Residual Count 8704
Now does ANY residual count indicate error? mt errstat gives me:
mt errstat
Last I/O Residual: 0
Last I/O Command: 08 01 00 00 14 00 00 00 00 00 00 00 00 00 00 00
Last I/O Sense:
F0 00 80 00 00 00 11 14 00 00 00 00 00 01 00 00
00 00 00 00 00 00 00 F6 1F 40 08 00 6F 63 00 00
Last Control Residual: 0
Last Control Command: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Last Control Sense:
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
okay. what does it mean? Residual count is 8704. yet, i/o residual
and control residual is 0. my understanding of this is getting worse.
--
David Bear
phone: 480-965-8257
fax: 480-965-9189
College of Public Programs/ASU
Wilson Hall 232
Tempe, AZ 85287-0803
"Beware the IP portfolio, everyone will be suspect of trespassing"
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