Date: Thu, 30 Jun 2005 17:10:28 -0400 From: Mark Bucciarelli <mark@gaiahost.coop> To: "questions@freebsd.org" <questions@freebsd.org> Subject: Re: RAID Cards Message-ID: <20050630211028.GP1280@rabbit> In-Reply-To: <20050630204448.8E0F543D4C@mx1.FreeBSD.org> References: <42C45161.1070402@toldme.com> <20050630204448.8E0F543D4C@mx1.FreeBSD.org>
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On Thu, Jun 30, 2005 at 04:48:18PM -0400, Simon wrote: > Just because there is no monitoring tool available due to lack of > support, doesn't mean the card itself is bad. I much prefer hardware > implementation than software. True hardware RAID frees up a lot of > CPU time if you have heavy IO and software just can't keep up if you > utilize CPU intensive apps. Why do you say hardware raid frees up "a lot of CPU time?" Have you measured this? Do you have any servers that are cpu-bound instead of io-bound? I am having this exact discussion with my business partner at the moment--he is also a proponent of hardware raid. I don't see the big win in hardware raid. I should probably search the archives, I sure this topic has been covered in detail before ... m
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