Date: Wed, 11 Aug 2010 09:11:24 +0300 From: Valentin Nechayev <netch@netch.kiev.ua> To: hackers@freebsd.org, geom@freebsd.org Subject: Re: Support for WD Advanced Format disks Message-ID: <20100811061124.GE17926@netch.kiev.ua> In-Reply-To: <20100810225012.A8CE35B67@mail.bitblocks.com>
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> After poking around some, it seems ATA/ATAPI-7 Identify > Device word 106 According to my tests WD EARS (at least 1.5) stably keep silence about this. I've seen 2 different disks from different parties. Moreover, one disk was unable to read last sector with jumper 7-8 because it didn't decrease reported size. This maybe firmware error. So one shall not rely on this identification at least for WD. Comments for the question (mainly in Russian) and links http://netch80.livejournal.com/12985.html Linux is stably moving to having partition align at 4KB or higher boundary to avoid such problems at all. https://bugzilla.altlinux.org/show_bug.cgi?id=16000 -netch-
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