Date: Wed, 11 Aug 2010 08:48:50 +0400 From: "Andrey V. Elsukov" <bu7cher@yandex.ru> To: Bakul Shah <bakul@bitblocks.com> Cc: =?UTF-8?B?RGFnLUVybGluZyBTbcO4cmdyYXY=?= <des@des.no>, Alexander Motin <mav@freebsd.org>, hackers@freebsd.org, geom@freebsd.org Subject: Re: Support for WD Advanced Format disks Message-ID: <4C622BB2.3090605@yandex.ru> In-Reply-To: <20100810225012.A8CE35B67@mail.bitblocks.com> References: <86wrry1hwv.fsf@ds4.des.no> <20100810184853.21FED5B5A@mail.bitblocks.com> <86mxsunpk6.fsf@ds4.des.no> <20100810225012.A8CE35B67@mail.bitblocks.com>
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This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enig243CAC20AACDD45C175FCBAE Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable On 11.08.2010 2:50, Bakul Shah wrote: > After poking around some, it seems ATA/ATAPI-7 Identify > Device word 106 bit 13 is set to 1 and bits 0-3 are set to 3 > (for 2^3 or 8 LBAs per sector) for a 4KB sector size (pin 7-8 > jumper on a WD AF disks presumably changes this setting to > 0,0). See page 121 of Atapi-7 volume 1 (google for > ata-atapi-7.pdf). >=20 > Hopefully this helps in whatever `clean solution' you are > looking for? This information is already used by ada(4) driver. If your disk doesn't lie about sector size you can see both logical and physical sector sizes in output of `camcontrol identify ada0` command. --=20 WBR, Andrey V. Elsukov --------------enig243CAC20AACDD45C175FCBAE Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.10 (MingW32) iQEcBAEBAgAGBQJMYiu6AAoJEAHF6gQQyKF63IwH/399hfx0L7gHs85XUdGANNjY YUwBRMijGZ6bdAWVmMusRcfJupnHWFTQHxguxTlidbsJbEy6l2z5UejA93XI1zbq 1Th1oIy6NLZdMmIsZrqMGcel8zxlhgrYFJPe++qPk7jpZz2ldwIAd0cuw1O4pcit pEluSrP+9RhYo/lPKXccKbuGJYGzbQW/vOE7ZvciBfDZ21G6FxDCO8kfYbuE84Pu EuZ+GRZS0WTb9WVbI1SRqsWro0wImI9QlomBwsla3LOrjTzFuw1E4ORZBQTZZ6jI ElEj7gwhyZ55hbCIKTKvJ8CaibyIwT9vQdZXLBZFrqmARj/p0cYz/DAgO+wpf2Q= =do5u -----END PGP SIGNATURE----- --------------enig243CAC20AACDD45C175FCBAE--
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