From owner-freebsd-geom@FreeBSD.ORG  Mon Oct 15 15:06:40 2007
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To: Eric Anderson <anderson@freebsd.org>
From: "Poul-Henning Kamp" <phk@phk.freebsd.dk>
In-Reply-To: Your message of "Mon, 15 Oct 2007 09:16:20 EST."
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Date: Mon, 15 Oct 2007 15:06:36 +0000
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Cc: d_elbracht <d_elbracht@ecngs.de>, 'Ivan Voras' <ivoras@freebsd.org>,
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Subject: Re: AW: g_vfs_done():da3s1a[READ(offset=81064794762854400,
	length=8192)]error = 5 
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In message <47137634.1010703@freebsd.org>, Eric Anderson writes:

>Solid state drives don't behave much differently that a regular drive 
>from FreeBSD's point of view.

Yes and no.  The effective lack of seek time has the potential to expose
a lot of flawed reasoning in filesystems with respect to ordering and
duration of I/O requests.

It might be a good idea to have GEOM module that could implement a
seek-time sort of behaviour, just for being able to falsifying that
theory.

-- 
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.