disk sequencer error?

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Article #10151

#10151

From: Tom Corsetti
Date: Wed, 11 Jan 1989 11:27

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Recently, our Sun 3/260 crashed because of a power outage.  When it came
back up, we had disk read errors in our root partition.  I used diag to
tell the system about the bad sectors, and restored the lost data from my
backup tapes.  When I rebooted, ths workstation came up with no further
problems.  I figured everything is cool now, right?  Well, today, almost a
week later, I shutdown and rebooted, and got the message:

  xy0a: read retry (disk sequencer error) -- blk #495, abs blk #495

Is this a serious disk problem that I should worry about?  The system
seems to be working well.  What is a disk sequencer error?  Would diag
have to be used to fix this problem?  Any help, and or advice would be
most greatly appreciated.  I wouldn't want to have to spend half the day
recovering data again.  Thanks in advance!

	Tom Corsetti

  Tom Corsetti                 internet - tomc@dftsrv.gsfc.nasa.gov
  NASA/Goddard Space Flt Ctr   decnet   - dftnic::tomc
  Greenbelt Maryland           bitnet   - tomc at dftbit

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Path: arc1-ca.pugleaf.net!utzoo!utgpu!watmath!clyde!att!osu-cis!killer!mit-eddie!uw-beaver!rice!sun-spots-request
From: tomc@dftsrv.gsfc.nasa.gov (Tom Corsetti)
Newsgroups: comp.sys.sun
Subject: disk sequencer error?
Message-ID: <102@dftsrv.gsfc.nasa.gov>
Date: 11 Jan 89 11:27:24 GMT
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Organization: Advanced Data Flow Technology Office
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Approved: Sun-Spots@rice.edu
Original-Date: 3 Jan 89 18:37:53 GMT
X-Sun-Spots-Digest: Volume 7, Issue 95, message 6 of 21