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From: Wojciech Puchar <wojtek@wojtek.tensor.gdynia.pl>
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Cc: freebsd-performance@freebsd.org, Olivier Mueller <om-lists-bsd@omx.ch>,
	Bill Moran <wmoran@potentialtech.com>, freebsd-questions@freebsd.org
Subject: Re: filesystem: 12h to delete 32GB of data
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>> config, or gmirror/gstripe config.
>> 
>> usually it's far much slower
>
> Sorry, but my experience with that very server using a P400 controller with 
> 256MB write cache is very different. My benchmarks showed that controller 
> using Raid5 (with only 4 disks) is significantly faster than software 
> layouts.

possibly with RAID5, but for sure slower than single drive

> The days when hardware controllers could automatically be considered slow are 
> long gone.

unfortunately not.