Date: Mon, 05 Dec 2011 19:37:40 +0000 From: "Poul-Henning Kamp" <phk@phk.freebsd.dk> To: Maxim Khitrov <max@mxcrypt.com> Cc: Mark Martinec <Mark.Martinec+freebsd@ijs.si>, freebsd-current@freebsd.org Subject: Re: bsdinstall guided partitioning should 4k-align swap and ufs partitions Message-ID: <58006.1323113860@critter.freebsd.dk> In-Reply-To: Your message of "Mon, 05 Dec 2011 14:30:05 EST." <CAJcQMWcyGKGMD3-vHxqrtVEcR4ax=OhMNfanwAyJ8EDOSpcY3g@mail.gmail.com>
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In message <CAJcQMWcyGKGMD3-vHxqrtVEcR4ax=OhMNfanwAyJ8EDOSpcY3g@mail.gmail.com> , Maxim Khitrov writes: >How do you get around the hardware claiming to use 512-byte sectors >when it actually uses 4 kB internally? Did you read what I wrote ? ] If the disk-driver has a 4k drive, or suspects it has a 4k drive ( ] these properties are advisory only), it should announce that with ] the stripe* properties on its GEOM provider. notice "suspects" ? It would be entirely reasonable for the driver to suspect all drives larger than some N GB to be 4k drives. But the information has to flow up from the driver, so that intermediate GEOM classes can adjust the two stripe-properties according to what they do. -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 phk@FreeBSD.ORG | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence.
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