Date: Tue, 15 May 2007 09:57:13 -0400 (EDT) From: Randy Schultz <schulra@earlham.edu> To: Kevin Kobb <kkobb@skylinecorp.com> Cc: freebsd-performance@freebsd.org Subject: PERC5i throughput [was: possible issues with Dell/Perc5 raid] Message-ID: <Pine.BSF.4.64.0705150948390.61298@tdream.lly.earlham.edu> In-Reply-To: <4649A71C.4030302@skylinecorp.com> References: <Pine.BSF.4.64.0705101545340.34925@tdream.lly.earlham.edu> <464474F0.3040306@tomjudge.com> <7579f7fb0705110735h1a65ef7atcab00bdbc25224d6@mail.gmail.com> <4649A71C.4030302@skylinecorp.com>
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On Tue, 15 May 2007, Kevin Kobb spaketh thusly: -}These reports on poor performance using mpt seem to be on SATA -}drives. Has anybody been seeing this using SAS drives? -} -}We are testing Dell PE840s with hot swap SAS drives, and seem to get decent -}performance, though I haven't run any benchmarks yet. Any opinions if the -}PERC5i/mfi is a better choice than the SAS5iR/mpt combination? Would it be possible for you to install blogbench and give it a quick run while your system is idle? We will be ordering a new box in 1-2 months that we need high disk I/O capabilities. We've been looking at the PERC5i set up RAID 5 with 4-6 SAS drives. I'ld be interested in what you're seeing for throughput on the PERC5i. -- Randy (schulra@earlham.edu) 765.983.1283 <*> Rain puts a hole in stone because of its constancy, not its force. - H. Joseph Gerber
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