Date: Wed, 24 Oct 2001 07:40:34 -0400 From: Mike Tancsa <mike@sentex.net> To: "Lawrence Farr" <freebsd-isp@epcdirect.co.uk> Cc: <freebsd-isp@freebsd.org> Subject: RE: 3Ware Escalade vs. Adaptec 2400A - test results Message-ID: <5.1.0.14.0.20011024074004.02567da0@192.168.0.12> In-Reply-To: <002501c15c7a$e15cded0$c806a8c0@lfarr> References: <001c01c15ba1$74cf9cf0$c806a8c0@lfarr>
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What are the management tools like for the card ? Any sense of stability ?
---Mike
At 11:58 AM 10/24/2001 +0100, Lawrence Farr wrote:
>Here are the results of a quick test of the Adaptec 2400A vs 3Ware 7xxx
>Series.
>
>I have 4 x Western Digital WD100BB 100Gb Drives connected to an Adaptec
>2400A controller
>with 32Mb of cache setup as a Raid5 volume.
>Using a simple script to generate a 1Gb file and read it back, I filled
>the disk completely.
>
> >From the logs it generated:
>
>64Kb Stripe size:
>
>Pass 6 - 1048576 kb written in 89 seconds, at 11781 kb/Sec
>Pass 6 - 1048576 kb read in 35 seconds, at 29959 kb/Sec
>Pass 7 - 1048576 kb written in 88 seconds, at 11915 kb/Sec
>Pass 7 - 1048576 kb read in 36 seconds, at 29127 kb/Sec
>
>256Kb Stripe size:
>
>Pass 6 - 1048576 kb written in 84 seconds, at 12483 kb/Sec
>Pass 6 - 1048576 kb read in 42 seconds, at 24966 kb/Sec
>Pass 7 - 1048576 kb written in 84 seconds, at 12483 kb/Sec
>Pass 7 - 1048576 kb read in 43 seconds, at 24385 kb/Sec
>
>And the 3Ware in Raid5 using 8 disks, 64k Stripe size:
>
>Pass 23 - 1048576 kb written in 115 seconds, at 9118 kb/Sec
>Pass 23 - 1048576 kb read in 15 seconds, at 69905 kb/Sec
>Pass 24 - 1048576 kb written in 116 seconds, at 9039 kb/Sec
>Pass 24 - 1048576 kb read in 15 seconds, at 69905 kb/Sec
>
>Not really a straight comparison as the 3Ware has more spindles, but
>that's as quick as it goes.
>
>Iozone reckons:
>
>File size set to 10240 KB
> Time Resolution = 0.000005 seconds.
> Processor cache size set to 1024 Kbytes.
> Processor cache line size set to 32 bytes.
> File stride size set to 17 * record size.
> random
>random bkwd record stride
> KB reclen write rewrite read reread read
>write read rewrite read fwrite frewrite fread freread
> 10240 4 17051 12833 201499 201916 168562
>6888 182840 310519 171512 16444 17486 171286 171409
>
>It's a damn shame about 3Ware.
>
>Lawrence Farr
>EPC Direct Limited mailto:lawrence@epcdirect.co.uk
>T:01179666123 F:01179666111 M:07970780901
--------------------------------------------------------------------
Mike Tancsa, tel +1 519 651 3400
Sentex Communications, mike@sentex.net
Providing Internet since 1994 www.sentex.net
Cambridge, Ontario Canada www.sentex.net/mike
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