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Date:      Fri, 21 Jan 2005 20:53:12 +1300
From:      Mark Kirkwood <markir@paradise.net.nz>
To:        "Jim C. Nasby" <decibel@decibel.org>
Cc:        freebsd-stable@freebsd.org
Subject:   Re: Disabling write-behind on IDE drives, and SMART
Message-ID:  <41F0B4E8.9090507@paradise.net.nz>
In-Reply-To: <20050120213906.GC67721@decibel.org>

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Jim C. Nasby wrote:
> Question one: how do I disable write caching on IDE drives? I know the
> setting is hw.ata.wc=0, but where do I put that? In loader.conf? This is
> FreeBSD 4.10, btw.
>
In /boot/loader.conf will do it.

> Also, has any thought been given to making the default 0, like it is for
> SCSI devices? I'm honestly surprised and disappointed that the default
> is speed over data integrity.
I think it was trialled in 4.3 then changed for 4.4 (according to the 
handbook, the performance hit was considered to be too high)

best wishes

Mark


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