Date: Wed, 5 Feb 1997 09:25:03 +1030 (CST) From: Michael Smith <msmith@atrad.adelaide.edu.au> To: dave@persprog.com (David Alderman) Cc: hardware@freebsd.org Subject: Re: 2G SCSI disks? Message-ID: <199702042255.JAA16730@genesis.atrad.adelaide.edu.au> In-Reply-To: <199702041839.NAA06190@persprog.com> from David Alderman at "Feb 4, 97 01:38:57 pm"
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David Alderman stands accused of saying: > On 5 Feb 97 at 0:05, Michael Smith proclaimed: > > > > Remind yourself that there's a reason RAID towers don't use SCSI > > > drives... > > > > Yeah, they're cheap and stupid, so you don't have to second-guess them. > > You guys did mean IDE above, right? I have never seen an IDE RAID > system (and I hope I never do). I've seen a number of RAID controllers that use IDE disks (they have SCSI host interfaces, naturally). IDE disks are an excellent choice - they're cheap, and because they're extremely stupid, they're nice and deterministic, which mans you can put all your smarts in the cluster controller and achieve a greater degree of control over the members of the array. Of course the opposite argument is that SCSI array members beat the pants off IDE members performance-wise. > Dave Alderman -- dave@persprog.com -- ]] Mike Smith, Software Engineer msmith@gsoft.com.au [[ ]] Genesis Software genesis@gsoft.com.au [[ ]] High-speed data acquisition and (GSM mobile) 0411-222-496 [[ ]] realtime instrument control. (ph) +61-8-8267-3493 [[ ]] Unix hardware collector. "Where are your PEZ?" The Tick [[
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