Date: Wed, 11 Aug 2010 10:26:58 +0200 From: =?utf-8?Q?Dag-Erling_Sm=C3=B8rgrav?= <des@des.no> To: Bakul Shah <bakul@bitblocks.com> Cc: geom@freebsd.org, hackers@freebsd.org Subject: Re: Support for WD Advanced Format disks Message-ID: <86sk2leer1.fsf@ds4.des.no> In-Reply-To: <20100810225012.A8CE35B67@mail.bitblocks.com> (Bakul Shah's message of "Tue, 10 Aug 2010 15:50:12 -0700") 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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Bakul Shah <bakul@bitblocks.com> writes: > 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). Yes. We already support this. The problem is that WD's Advanced Format disks (or at least some of them) lie. DES --=20 Dag-Erling Sm=C3=B8rgrav - des@des.no
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