Path: utzoo!utgpu!attcan!uunet!cbmvax!jesup
From: jesup@cbmvax.UUCP (Randell Jesup)
Newsgroups: comp.sys.amiga
Subject: Re: Self-repairing SCSI disks!
Message-ID: <4865@cbmvax.UUCP>
Date: 28 Sep 88 23:18:52 GMT
References: <4275@louie.udel.EDU>
Reply-To: jesup@cbmvax.UUCP (Randell Jesup)
Organization: Commodore Technology, West Chester, PA
Lines: 32

In article <4275@louie.udel.EDU> mcohen@nrtc.northrop.com (Marty Cohen) writes:
>Why are (at least some) SCSI drives self-repairing?
...
>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. 
...
>1. What causes this?

	The validator process of the file system is running.

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

	It knows that the filesystem was in an inconsistant state when
then system went down, and is going through every file and directory
looking for trouble, and figuring out what blocks of the disk are free
for use.

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

	No.

>4. How will 1.3 affect this?

	If you use FFS, it will happen much faster.

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