Date: Thu, 16 Mar 2006 08:43:03 -0500 From: Chuck Swiger <cswiger@mac.com> To: Don O'Neil <don@lizardhill.com> Cc: freebsd-questions@freebsd.org Subject: Re: Raidtest/3Ware 6000 Throughput Message-ID: <44196B67.6090108@mac.com> In-Reply-To: <003401c648ba$78e30a60$0300020a@mickey> References: <003401c648ba$78e30a60$0300020a@mickey>
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Don O'Neil wrote: [ ... ] > Does this seem accurate? Should I only be seeing 4.7 MB/second throughput or > is raidtest just not a good way to measure peak throughput? > > Any thoughts would be appreciated. It does not astonish me that you get 5 MB/s on a RAID-5 config, although if you used SCSI and/or a real HW RAID-5 controller with significant cache (ie, 64+ MB) that would help the performance by quite a bit. Use RAID-5 for read-only or read-mostly situations and you'll be better off; use RAID-10 for write-heavy filesystems instead. -- -Chuck
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