Date: Thu, 7 Apr 2005 01:42:14 -0700 (PDT) From: Brian Behlendorf <brian@hyperreal.org> To: Carl Makin <carl@xena.IPAustralia.gov.au> Cc: freebsd-questions@freebsd.org Subject: Re: IBM eServer 346 ServeRaid is too slow Message-ID: <20050407013544.W73813@paz.hyperreal.org> In-Reply-To: <42548B2D.9010503@xena.ipaustralia.gov.au> References: <200504061842.43294.eugene@imedia.ru> <42548B2D.9010503@xena.ipaustralia.gov.au>
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On Thu, 7 Apr 2005, Carl Makin wrote: > I'd say you are seeing the same as I am with the same card in a Dell 1855. > There is something wrong with the mpt driver and the disks when they are > setup in a raid0 set. If you split the disks and use them as individual > drives then you will get full performance. It's also a known problem, though not being tracked very well. http://lists.freebsd.org/pipermail/freebsd-scsi/2004-December/001577.html http://lists.freebsd.org/pipermail/freebsd-scsi/2004-December/001578.html Doesn't look like (from viewcvs.cgi) there's been any recent work on this. Brian
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