[comp.sys.amiga] Xebec drive problems

thistle@super.ORG (Mark R Thistle) (12/19/89)

I have an Amiga 1000 with 512K memory.  My hard drive is 
a Xebec 9720H (20 Meg).  I'm running Workbench 1.2. 
Every once in a while, and it's becoming more frequent,
things simply lock up and the only way to recover is to reboot.
During reboot, the hard drive doesn't validate, giving me an 
error like, "Error validating disk Xebec,key 20888 bad block type."

This phenomenon often occurs while
running Textcraft Plus.  What typically happens is that I'll 
open a header within Textcraft and upon closing it, all response
from the keyboard and mouse is gone.  There are no warnings or
any unusual behaviors observed prior to this happening.  It has
also happened when exiting the program.  I also experienced the
problem after issuing a copy command (for a small file) inside 
a cli window.  On some occasions I've gotten a guru message.
The guru number that comes up most frequently is :
	8700000B.265F48F1,
althought once I got 84038002.00FC165A (I think this one occurred
after exiting textcraft).

On every occasion I've been able to use diskdoctor to clean up 
the disk, i.e. delete the currupted files.  The files that are
found to be currupt are not always ones that were accessed 
during the session.  After copying needed files off the disk,
I reformated and went on my merry way to restoring the files
on the disk without incident.

Does anyone have any idea what might be causing this behavior?

Thanks in advance.

Mark Thistle  (thistle@super.org)
Supercomputing Research Center