Date: Mon, 3 Aug 1998 13:00:16 -0600 (MDT) From: "Justin T. Gibbs" <gibbs@narnia.plutotech.com> To: Serge Egelman <serge@egel2.med.umn.edu> Cc: aic7xxx@FreeBSD.ORG Subject: Re: seagate cheetah LVD Message-ID: <199808031900.NAA02004@narnia.plutotech.com> In-Reply-To: <35C5EDE4.1C6724E@egel2.med.umn.edu>
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In article <35C5EDE4.1C6724E@egel2.med.umn.edu> you wrote: > hi, > after finally getting my 2940u2w to work under linux I found that > there is absolutely no improvement over my AIC-7895 (on board). I am > getting only 18 mb/s sustained. I talked to the seagate people and they > said this is normal. But I know I can get faster because the cheetah on > the sgi octane does about 30-40 mb/s. Is there any way of getting > faster than 18 mb/s? 30-40MB/s for reads or writes? If you do the math (rotational speed plus media density), the drive simply can't go faster than ~18MB/s, so the Octane must either have a lots of memory dedicated to a write buffer, or you are reading data that the SGI's VM system already has in core. -- Justin To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe aic7xxx" in the body of the message
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