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Date:      Mon, 19 Oct 1998 17:47:39 +0000 (GMT)
From:      Terry Lambert <tlambert@primenet.com>
To:        gibbs@plutotech.com (Justin T. Gibbs)
Cc:        tlambert@primenet.com, julian@whistle.com, guido@gvr.org, dkelly@hiwaay.net, freebsd-fs@FreeBSD.ORG, freebsd-scsi@FreeBSD.ORG
Subject:   Re: filesystem safety and SCSI disk write caching
Message-ID:  <199810191747.KAA28054@usr02.primenet.com>
In-Reply-To: <199810182308.RAA21386@pluto.plutotech.com> from "Justin T. Gibbs" at Oct 18, 98 05:01:30 pm

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> >Perhaps they realized that the mpst likely event after a power
> >fluctuation was a bus reset, and figured "why bother?".
> 
> And why is this relevant?  The only reasons allowed for cache contents
> never making it to the disk are power loss and hardware failure.  A
> bus reset (assuming the hard reset alternative is in effect) only clears
> any transactions that have not been reported as completed to the host.
> 
> Perhaps you should add the SCSI II and SCSI II specs to your list of things
> to read.

Feel free to engage in Ad Hominim attacks, *after* you explain why
Don Lewis is seeing the empirical behaviour he is seeing, in
contradiction to your claims of what's possible and not.


					Terry Lambert
					terry@lambert.org
---
Any opinions in this posting are my own and not those of my present
or previous employers.

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