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To: Wilko Bulte <wkb@freebie.xs4all.nl>
From: "Poul-Henning Kamp" <phk@phk.freebsd.dk>
In-Reply-To: Your message of "Tue, 08 Apr 2003 19:25:55 +0200."
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Date: Tue, 08 Apr 2003 19:34:38 +0200
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Subject: Re: cvs commit: src/sys/dev/ata ata-all.c ata-all.h
	ata-chipset.cata-dma.c ata-pci.c ata-pci.h 
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Summary:

   Write Caching:
	Drive says "I have written your data" when it hasn't.
	(A bad thing!)

   Has not by definition anything to do with:

   Tagged queueing:
	Ability to reduce transaction latency by sending more than one
	request to the drive at a time.  The request may be handled out
	of order by the drive.
	(A good thing!)

and:

   ATA != SCSI.

-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk@FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.