Date: Fri, 25 Dec 2009 12:22:08 +0100 From: Thomas Backman <serenity@exscape.org> To: Alexander Motin <mav@freebsd.org> Cc: FreeBSD-Current <freebsd-current@freebsd.org>, freebsd-arch@freebsd.org Subject: Re: File system blocks alignment Message-ID: <469FFFC8-514B-41B9-AEEC-E4B7AB6CB886@exscape.org> In-Reply-To: <4B349ABF.2070800@FreeBSD.org> References: <4B349ABF.2070800@FreeBSD.org>
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On Dec 25, 2009, at 11:58 AM, Alexander Motin wrote: > Hi. >=20 > Recently WD released first series of ATA disks with increased physical > sector size. It makes writes not matching with 4K blocks inefficient > there. They don't expose this to the OS, though (not by default, anyway), but = chop it up into 8 512-byte sectors for compatibility reasons. Just thought I'd point that out - I'm not even sure if you can get them = to *not* do the compatibility thing and expose 4k-sized sectors. I'm sure your work is important for other setups, though, as proved. :) Regards, Thomas=
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