Path: utzoo!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!uwm.edu!marque!lakesys!rich
From: rich@lakesys.lakesys.com (Richard Dankert)
Newsgroups: comp.sys.atari.st
Subject: Re: Adaptec + Seagate hard drive question
Message-ID: <1715@lakesys.lakesys.com>
Date: 27 Feb 90 05:18:20 GMT
References: <1152@oucsace.cs.OHIOU.EDU>
Reply-To: rich@lakesys.UUCP (Richard Dankert)
Distribution: na
Organization: Lake Systems - Milwaukee, Wisconsin
Lines: 52

In article <1152@oucsace.cs.OHIOU.EDU> bwhite@oucsace.cs.OHIOU.EDU (Bill White) writes:
>
>	I have an ICD host adaptor with an Adaptec 4070 controller and
>a Seagate 277R-1 (?) 28ms 65meg RLL hard drive.  My problem is I keep
>getting a <SENSE $11> code.  No bad sectors, no data errors, just the
>sense $11.  It happens on maybe one or two tracks on two (out of five)
>partitions, but it makes me wonder if something might be wrong.
>	Incidentally, it's always in the same place, so that rules out
>cable errors or such.  Anyone know what this means?  The Adaptec 4070
>manual says something about an "unrecoverable data field error" or some
>such nonsense, but I have yet to lose any data whatsoever, even after
>performing repeated read-write-verify cycles on some of the sectors in
>question.
>	BTW, why are all the tracks initialized to "lllllllll"...?
>
>						Bill White
>						bwhite@oucsace.cs.ohiou.edu



Bill;


According to my manuale for the ST Host Adaptor frm ICD, sense codes is 
explained as follows.

/*

$11	Unrecovered read error of data blocks. The operation was 
terminated with an unrecovered error condition probably caused by a 
flaw in the medium. This indicates that there is a problem, probably, 
a bad sector. You should run a program called Clean_up ST, to check 
for and map out bad sectors.

	If this message appears while you are running Clean_up ST but no 
errors are reported by the program, then there are probably bad sectors
that have already been mapped out. Similarly, any program that reads
sectors with out checking to see which are marked bad in the FAT may cause 
this message to appear, although there is no problem.

	If new bad sectors begin to appear, and it becomes necessary to 
map them out often , there is probably a problem with the mechanism.

*/



	I looked for the program that they mention, and have yet to find
Clean_up ST anywhere on the disks provided with the host adaptor/controller.

rich.....
UUCP: rich@lakesys.lakesys.COM     {always .... }