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Date: Thu, 09 Nov 2006 12:44:56 +0100
From: Ivan Voras <ivoras@fer.hr>
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To: Pete French <petefrench@ticketswitch.com>
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Cc: freebsd-stable@freebsd.org
Subject: Re: Dissapointing performance of ciss RAID 0+1 ?
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Pete French wrote:

>> - How does your performance compare when using dd on the raw devices (in 
>> order: da0, da0s1, da0s1a...) vs when using it on the file system? (Poor 
>> performance might indicate FS vs stripe alignment issues)
> 
> Raw dd gives 50 meg/second

On /dev/da1, with a reasonable block size (1m)?