Date: Thu, 29 Oct 1998 12:06:15 -0500 (EST) From: "Matthew N. Dodd" <winter@jurai.net> To: Karl Denninger <karl@Denninger.Net> Cc: Hallam Oaks <mlnn4@oaks.com.au>, "hackers@FreeBSD.ORG" <hackers@FreeBSD.ORG> Subject: Re: Multi-terabyte disk farm Message-ID: <Pine.BSF.4.02.9810291202030.17054-100000@sasami.jurai.net> In-Reply-To: <19981029105943.A27659@Denninger.Net>
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On Thu, 29 Oct 1998, Karl Denninger wrote: > > You'd proably only see it in RAID5 mode or if you were -really- beating on > > your array. Still, with that much memory they should make # of tags > > supported a tunable. > > We beat the SHIT out of our arrays, and the big NFS servers run in RAID 5 > mode :-) But how busy is the controller? 50%? More? David G. would probably have more information on the CMD's low performance modes. (Or rather modes where the limited number of taged commands begins to impose limits on I/O) > > I really want to find a cheap CRD-5440 just for kicks. 1 host and 2 disk > > channels is just right for a small server. > > Yep. Actually, the 5440 has 4 channels :-) ~$2500 or so. Ya, reading skills help. $2500 is still a bit out of my price range for home use. Maybe when I can second hand them in a few years. :) -- | Matthew N. Dodd | 78 280Z | 75 164E | 84 245DL | FreeBSD/NetBSD/Sprite/VMS | | winter@jurai.net | This Space For Rent | ix86,sparc,m68k,pmax,vax | | http://www.jurai.net/~winter | Are you k-rad elite enough for my webpage? | To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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