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Date:      Wed, 24 Oct 2001 12:54:49 +0100
From:      "Lawrence Farr" <freebsd-isp@epcdirect.co.uk>
To:        "'Mike Tancsa'" <mike@sentex.net>
Cc:        <freebsd-isp@freebsd.org>
Subject:   RE: 3Ware Escalade vs. Adaptec 2400A - test results
Message-ID:  <002b01c15c82$aedff020$c806a8c0@lfarr>
In-Reply-To: <5.1.0.14.0.20011024074004.02567da0@192.168.0.12>

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There's an X based one, but I've not tried it.

Lawrence Farr
EPC Direct Limited mailto:lawrence@epcdirect.co.uk
T:01179666123 F:01179666111 M:07970780901  

-----Original Message-----
From: Mike Tancsa [mailto:mike@sentex.net] 
Sent: 24 October 2001 12:41
To: Lawrence Farr
Cc: freebsd-isp@freebsd.org
Subject: RE: 3Ware Escalade vs. Adaptec 2400A - test results



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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