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Date:      Sun, 09 Mar 1997 15:23:22 +0000
From:      Dave Gilbert <gilbertd@cs.man.ac.uk>
To:        scsi@freebsd.org
Subject:   Medium error messages - how to read
Message-ID:  <3322D5EA.9398D0B@cs.man.ac.uk>

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Hi,
  Our 9GB Micropolis 1990 has just been moved from a Sun where it was
working fine to our PC with FreeBSD nad probably at the time the
first backup dump was run we've seen the following in our logs:

Mar  8 21:57:40 uriah /kernel: sd1(ahc0:2:0): MEDIUM ERROR info:756cb
asc:11,0 U
nrecovered read error
Mar  8 21:57:40 uriah /kernel: , retries:4
Mar  8 21:57:40 uriah /kernel: sd1(ahc0:2:0): MEDIUM ERROR info:756cb
asc:11,0 U
nrecovered read error
Mar  8 21:57:40 uriah /kernel: , retries:3
Mar  8 21:57:41 uriah /kernel: sd1(ahc0:2:0): MEDIUM ERROR info:756cb
asc:11,0 U
nrecovered read error
Mar  8 21:57:41 uriah /kernel: , retries:2
Mar  8 21:57:41 uriah /kernel: sd1(ahc0:2:0): MEDIUM ERROR info:756cb
asc:11,0 U
nrecovered read error
Mar  8 21:57:41 uriah /kernel: , retries:1
B
Mar  8 21:57:42 uriah /kernel: sd1(ahc0:2:0): MEDIUM ERROR info:756cb
asc:11,0 U
nrecovered read error
Mar  8 21:57:42 uriah /kernel: , FAILURE

Now I'm presuming that the 2940UW driver is not lying and it really
is a Medium error.

First of all what should I do - is there anyway I can see if the drive
has automatic block remapping on?
Failing that how do I read the error - what partition is it on? Is there
anyway I can track down the file in question?

I'm inclined to think its the drive; but the fact that its only
happened after its been put on the PC makes me suspicious - even
though it is the 3rd one of these drives that we've had!

Dave
-- 
----------- (Phone: 0161-275-3547) ------------------------ Man can not
live  -
 David Alan Gilbert - gilbertd@cs.man.ac.uk - G7FHJ@GB7BEV  by bread
alone. He 
----------- (University of Manchester - AMULET Group) --H-- needs
chocolate.  -



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