Path: utzoo!utgpu!attcan!uunet!super!udel!mmdf
From: mcohen@nrtc.northrop.com (Marty Cohen)
Newsgroups: comp.sys.amiga
Subject: Self-repairing SCSI disks!
Message-ID: <4275@louie.udel.EDU>
Date: 27 Sep 88 22:04:03 GMT
Sender: mmdf@udel.EDU
Lines: 34

Why are (at least some) SCSI drives self-repairing?

Configuration: Amiga 1000, 1meg insider, C-Ltd SCSI controller,
50 meg drive, Live!

Problem: While duplicating EMPTY (to create a sub-directory via
moving (there ought to be an easier way - the mac is much nicer
here)), the system freezes, the screen goes blank, and the guru
appears. Upon reboot, the system tries to access the hard disk
and seemingly fails, with the light on the hard disk flickering
periodically.

Solution (courtsey of C-Ltd): Just let it run!! According to
C-Ltd, the disk is being repaired. Eventually (5 min to a few
hours), the disk will be ok. 

Amazingly, this works. This has happened twice, and both times
the disk has repaired itself. The onle problem is that the
copy of empty is useless - no files can be copied to it. So I just
discard it, create a new copy of empty, and everything seems ok.

Questions:

1. What causes this?

2. How is the disk repaired and what kind of repairs are done?

3. Could this cause something else to go wrong later?

4. How will 1.3 affect this?

Thanks,

Marty Cohen (mcohen@nrtc.northrop.com - 128.99.0.1)