Date: Sun, 13 Aug 1995 19:20:15 +0930 (CST) From: Michael Smith <msmith@atrad.adelaide.edu.au> To: rgrimes@gndrsh.aac.dev.com (Rodney W. Grimes) Cc: msmith@atrad.adelaide.edu.au, john@zyqad.co.uk, freebsd-hardware@freebsd.org Subject: Re: Upgrade to my machine Message-ID: <199508130950.TAA18501@genesis.atrad.adelaide.edu.au> In-Reply-To: <199508111659.JAA04184@gndrsh.aac.dev.com> from "Rodney W. Grimes" at Aug 11, 95 09:59:00 am
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Rodney W. Grimes stands accused of saying: > > But that's what I'm getting at; if you take a 1G disk that costs twice as > > much as some other 500M disk, it'll generally have _better_ performance > > characteristics. > XX. BAS DEC3053L Dec/Quantum 535MB 3.5"x1", SCSI-II, 5400 RPM, 9.5mS $ 195.00 > XX. MER FUJ-1606S Fujitsu M1606S 1.0GB 3.5"x1" 5400RPM 10mS $ 427.00 > > Those are my current best price point drives in both sizes. Note that my > best 535MB drive is actually less than 1/2 the price of my best 1G drive, > and it has a _faster_ seek time, and all my iozone and bonnie data says > the DEC3053L is a clear winner over the 1606S. Accepted for your locale, note that I observed later in the message that circumstances here are somewhat different: > > It's nice if you can afford it; here the price point is on the 1G disks, > > so that's what I recommend. It's an interesting approach, though. I'm (although this is subject to my getting a better price on the 500M units; currently the best I've seen is a shade under AUS$500) > be at $1560, making the M3243 a clear winner in the <$1400 range. But, > performance would be _far_ better with the 8 drives _if_ you can load > balance the application accross multiple spindls _or_ you had stripping > technology in the OS you where running. Hmm; sounds like a mix of disks may be a profitable idea. Ta for the suggestion. > For any current production performance class scsi controller (bt, aha, ncr) > the above mutliple drive support in the BIOS is a given. Your talking about > abosolete, no longer avaliable, low performance controllers if they are > missing this feature. Great. I can forget about it as an issue then. > Rod Grimes rgrimes@gndrsh.aac.dev.com -- ]] Mike Smith, Software Engineer msmith@atrad.adelaide.edu.au [[ ]] Genesis Software genesis@atrad.adelaide.edu.au [[ ]] High-speed data acquisition and [[ ]] realtime instrument control (ph/fax) +61-8-267-3039 [[ ]] My car has "demand start" - Terry Lambert [[
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