Date: Wed, 21 Jul 1999 02:37:32 -0700 (PDT) From: asami@cs.berkeley.edu (Satoshi Asami) To: scsi@freebsd.org Subject: error logs Message-ID: <199907210937.CAA96811@silvia.hip.berkeley.edu>
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Hi,
I have a question. I just saw some errors on the package building
machine. Part of it looks like this:
===
:
Jul 21 02:25:39 bento /kernel: (da7:ahc1:0:4:0): READ(10). CDB: 28 0 0 3c f8 16 0 0 2 0
Jul 21 02:25:39 bento /kernel: (da7:ahc1:0:4:0): MEDIUM ERROR info:3cf816 asc:11,0
Jul 21 02:25:39 bento /kernel: (da7:ahc1:0:4:0): Unrecovered read error sks:80,9
Jul 21 02:25:40 bento /kernel: (da7:ahc1:0:4:0): READ(10). CDB: 28 0 0 3c f8 16 0 0 2 0
Jul 21 02:25:41 bento /kernel: (da7:ahc1:0:4:0): RECOVERED ERROR info:3cf817 asc:17,2
Jul 21 02:25:41 bento /kernel: (da7:ahc1:0:4:0): Recovered data with positive head offset sks:80,2
:
===
I assume the stuff after "CDB:" is the entire SCSI command (10-byte
commands?), does this mean that the kernel got a medium error from the
disk, retried the exact same read command and succeeded the second
time, even though the disk had to do some internal fiddling ("positive
head offset")?
I also see a bunch of recovered error messages with no associated
medium error messages. This probably means the disk is dying, right?
Thanks,
Satoshi
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