Date: Wed, 13 Feb 2002 18:17:11 -0800 From: Russ <toolshed51@earthlink.net> To: freebsd-stable@freebsd.org Subject: Re: Best ATA RAID controller Message-ID: <5.1.0.14.2.20020213181205.021e8f80@mail.earthlink.net> In-Reply-To: <200202140155.g1E1tNF01777@mass.dis.org> References: <Your message of "Wed, 13 Feb 2002 18:47:34 CST." <Pine.BSF.4.33L2.0202131845580.99286-100000@centipede.symmetric.net>
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At 05:55 PM 2/13/2002 -0800, you wrote:
> > I use RAID 5 on an 8 port 3ware card with 7 active 60GB IBM disks. It's
> > really slow at a max write speed of about 7MB/s for any block size. I've
> > had read speeds at about 16MB/s. The box is a PIII 450 with 512MB RAM
>
>RAID5 on the 6xxx-family cards will be very slow; it should be
>substantially better on the 7xxx's, especially the 7x5x's, which have
>hardware checksum acceleration.
I use a 3ware 6410, it has hardware accelerated RAID 5. 3 drives as RAID 5
with hot spare and the speed is great. - Russ
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