Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!iuvax!rutgers!apple!oliveb!amiga!cbmvax!jesup
From: jesup@cbmvax.UUCP (Randell Jesup)
Newsgroups: comp.sys.amiga
Subject: Re: disk drive problems...
Message-ID: <6756@cbmvax.UUCP>
Date: 3 May 89 18:20:23 GMT
References: <5000@charon.unm.edu> <14503@louie.udel.EDU> <714@wsu-cs.uucp>
Reply-To: jesup@cbmvax.UUCP (Randell Jesup)
Distribution: na
Organization: Commodore Technology, West Chester, PA
Lines: 22

In article <714@wsu-cs.uucp> jal@cs.wayne.edu (Jason Leigh) writes:
>
>I have been experiencing similar disk problems for almost a year
>now, so I don't think it's the temperature.  What I have noticed
>is that most of the errors occur in tracks > 70 when my disk started
>getting full.  I suspected drive speed problems but I checked that
>and it was in the correct range.  I even opened up my Amiga (500)
>and cleaned out the drive and the problems still persisted.  Currently
>I still have no clue as to what the problem might be.

	Could be a misaligned drive, or it might be an electronic problem
with the drive.  I assume you used a head-cleaning diskette to clean the heads.
Most errors (media or drive-related, as opposed to software) occur on
cylinders 70 or above.  This is because the bits are closer together near the
inside of the disk, and so the ciruitry/hardware is stressed the most there
to work correctly.

	Does this occur with known good disks (brand-name), or with generic
disks?

-- 
Randell Jesup, Commodore Engineering {uunet|rutgers|allegra}!cbmvax!jesup