From: Karl Leslie Rudd <klr03 AT uow DOT edu DOT au>
Message-Id: <199702010334.OAA04693@banshee.cs.uow.edu.au>
Subject: Re: [opendos] Controller card or Norton's SpeedDisk eat files w/ OpenDOS?
To: dmills AT img DOT net, opendos AT mail DOT tacoma DOT net
Date: Sat, 1 Feb 1997 14:34:37 +1100 (EST)
In-Reply-To: <19970201025302179.AAA793@port117.img.net> from "Mills, Dean" at "Jan 31, 97 06:55:53 pm"
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> Greetings,

> Well, decided against installing OpenDOS on the server here, and threw it
> onto one of the nodes instead. Installs fine, AMI BIOS and all. After a few
> reboots, I noticed a few problems though. I recently replaced the old HDD/FDD
> controller with a Promise caching controller. I've setup Norton's SpeedDisk
> to defrag and reorder the HD on every boot. Now, after the second reboot
> after the card change, I noticed a large number of files were missing,
> strangely, almost exactly half the files. I ran CHKDSK /F, and found 2900+
> lost chains, almost exactly half the number of allocation units I had in use
> before. No big deal, I will just re-install, but, who is the culprit? The new
> controller card, or OpenDOS + SpeedDisk? Anyone else have this happen (I hope
> not!). Any help would be great.

> D.Mills

  AMI and Cache card most likely.

  I've had the same problems with the AMI bios and another cache/controller
card. What happend was that the cache card AND the bios were both trying to
do the LFB (or whatever it's called) drive remapping. Turned off the cache
cards remapping and everything was fine.

  I eventually sussed out what was happening when I found a "duplicate copy"
of the boot sector way up in 1,000,000 sector range. When I altered the
"copy" it altered the orignal way back down at 0, sort of a wrap around
effect... :(

  If this is the case be VERY careful until you've fixed it, if you write
past a certain point on the drive you'll end up overwriting the FAT,
probably both. This happened to me multiple times be I worked out what was
happening.

  Hope this helps.

  Karl