Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!clyde.concordia.ca!uunet!wuarchive!usc!brutus.cs.uiuc.edu!jarthur!uci-ics!baxter
From: baxter@ics.uci.edu (Ira Baxter)
Newsgroups: comp.unix.i386
Subject: Re: ISC disk driver bug? (Was Disks Hang Under 2.0.2 SCSI add WD1006SRV2)
Message-ID: <258C899B.28434@paris.ics.uci.edu>
Date: 18 Dec 89 06:54:18 GMT
References: <654400003@cdp> <6700047@adaptex>
Lines: 24

This thread indicated 2.0.2 hangs up sometimes when going for heavy disk
accesses, using SCSI controllers.  There has been some discussion about
Newbury drives being at fault.

Assuming that the disk drives, and not the controllers, are at fault,
there is *no* reasonable excuse for the ISC drivers to fail to
diagnose this problem (there really ought to be an I/O transaction timeout
of some kind!!).  So even if the Newbury drives are busted, so is the
ISC driver.

I use a Western Digital WD1006SRV2 (RLL 1-1 track-buffered)
controller.  I (and others with 1006s) have seen identical symptoms;
until I saw this thread, I assumed there was something funny about the
WD1006.  I have been chasing this problem unsuccessfully even with
WD's aid.  I conclude the problem is more due to the ISC drivers than
the hardware.

Would somebody at ISC look into this problem and discuss solutions,
or tell us why it can't be the ISC drivers?

Thanks,

--
Ira Baxter