Path: utzoo!utgpu!attcan!uunet!lll-winken!lll-lcc!ames!mailrus!cornell!uw-beaver!rice!sun-spots-request
From: dinah@shell.UUCP (Dinah Anderson)
Newsgroups: comp.sys.sun
Subject: Re: disk sequencer error
Message-ID: <8901111524.AA26300@dogwood.IC.shell.com>
Date: 16 Jan 89 01:20:18 GMT
Sender: usenet@rice.edu
Organization: Sun-Spots
Lines: 17
Approved: Sun-Spots@rice.edu
Original-Date: Wed, 11 Jan 89 09:24:02 CST
X-Sun-Spots-Digest: Volume 7, Issue 105, message 3 of 22

> 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?  

We have received these errors on several different systems (several
different controller/disk combinations.) Sometimes the disk stops working
and sometimes we get a couple of the error messages and then things
proceed normally. 

I would like to know what the errors mean and under what circumstances
they occur. I would also like to know what we should do about them.

Dinah Anderson 
Shell Oil Company, Information Center (713) 795-3287
...!{sun,psuvax,soma,rice,ut-sally,ihnp4}!shell!dinah