Date: Mon, 02 May 2005 23:06:49 +0200 From: "Poul-Henning Kamp" <phk@phk.freebsd.dk> To: Sten Spans <sten@blinkenlights.nl> Cc: Eric Anderson <anderson@centtech.com> Subject: Re: Very low disk performance on 5.x Message-ID: <20784.1115068009@critter.freebsd.dk> In-Reply-To: Your message of "Mon, 02 May 2005 22:54:00 %2B0200." <Pine.SOC.4.61.0505022252190.787@tea.blinkenlights.nl>
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In message <Pine.SOC.4.61.0505022252190.787@tea.blinkenlights.nl>, Sten Spans w rites: >>> What about disk arrays that support RAID3? >> >> Would work for me, but most of them are dumbed down when they do RAID3: >> they have to hard format the disks to 128 byte sector sizes and similar >> madness in order to support 512 bytes sectors on the RAID3 volume. > >I would really love the 512 + 8 byte checksum stuff that mainframes >and netapps do. Does GEOM simplify implementing something like this ? Yes, GEOM works with arbitrary sectorsizes, but far from all current GEOM classes does. -- 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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