[rescue] Problems with Sun Tape Drives

[Zach Lowry]

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I have 2 Sun tapes that I'm afraid have just bit the dust. I'd like any
tips that you could provide. I'm using both of them with a NetBSD/sparc
machine. The first one comes up just fine:

May  2 11:46:23 subversion /netbsd: st0 at scsibus0 target 5 lun 0:
<ARCHIVE, Python 28454-XXX, 4.BL> tape removable
May  2 11:46:23 subversion /netbsd: st0: drive empty
May  2 11:46:23 subversion /netbsd: st0: sync (200.00ns offset 15),
8-bit (5.000MB/s) transfers

And successfully completes a backup operation with tar. Trying a tar tvf
gives me this:

May  3 05:52:48 subversion /netbsd: st0: 10240-byte tape record too big
for 2048-byte user buffer
May  3 05:52:48 subversion /netbsd: st0(esp0:0:5:0):  Check Condition on
CDB: 0x08 00 00 08 00 00
May  3 05:52:48 subversion /netbsd:     SENSE KEY:  No Additional Sense
May  3 05:52:48 subversion /netbsd:                 Incorrect Length
Indicator Set
May  3 05:52:48 subversion /netbsd:    INFO FIELD:  -8192
May  3 05:52:48 subversion /netbsd:      ASC/ASCQ:  No Additional Sense
Information

The second tape claims it's this:

st0 at scsibus0 target 3 lun 0: <EXABYTE, EXB-8500SMBANXH1, 0458> tape
removable
st0: density code 21, 1024-byte blocks, write-enabled
st0: sync (248.00ns offset 11), 8-bit (4.032MB/s) transfers

And I get errors similar to this while writing to the tape:

May  3 06:09:44 subversion /netbsd: st0(esp0:0:3:0):  Check Condition on
CDB: 0x0a 00 00 08 00 00
May  3 06:09:45 subversion /netbsd:     SENSE KEY:  Media Error
May  3 06:09:46 subversion /netbsd:    INFO FIELD:  2048
May  3 06:09:49 subversion /netbsd:  COMMAND INFO:  1 (0x1)
May  3 06:09:51 subversion /netbsd:      ASC/ASCQ:  Write Append
Position Error
May  3 06:09:52 subversion /netbsd:
May  3 06:09:54 subversion /netbsd:  2048

Is there anything that can be done to fix these things? Cleaning tapes, etc?

- --
Zach Lowry
MTSU, Murfreesboro, TN
zach at zachlowry.net
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