Re: R.A.I.D Boxes

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Article #373

#373

From: Lawrence Kirby
Date: Mon, 07 Nov 1994 23:20

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In article <1994Nov02.040130.28577@ksmith.com>
           keith@ksmith.com "Keith Smith" writes:

>In article <CyKrsp.6zu@icdc.delcoelect.com>,
>Thomas V. Myers <tvmyers@koicds01.icdc.delcoelect.com> wrote:
>$ time dd if=/dev/rdsk/0s0 of=/dev/null bs=65536 count=1024
  .
  .
I agree although I also test reading a large file through the filesystem
since this is more representative of the system performance (which is a
more useful figure). In some cases the filesystem lookahead can result in
higher transfer rates.

>Replacing an AHA 1542 with a 1742, dropped my times from the 30 second
>range into the 17 second range on the above test.  Benchmark numbers
>(even silly ones like 'dd') that are that radically different show a
>_me_ whole lot.  The 2742 was only able to turn low 20's.  I'd be
>curious to see what the new 29XX's will do, but my box is EISA/VESA.

That rather depends on what drive you are using! Your results are quite
impressive - what are you using?

-- 
-----------------------------------------
Lawrence Kirby | fred@genesis.demon.co.uk
Wilts, England | 70734.126@compuserve.com
-----------------------------------------

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<CyC9L1.5Hx@world.std.com> <arothwel.783301806@cisco.com> <CyKrsp.6zu@icdc.delcoelect.com> <1994Nov02.040130.28577@ksmith.com>

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From: fred@genesis.demon.co.uk (Lawrence Kirby)
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Subject: Re: R.A.I.D Boxes
References: <CyC9L1.5Hx@world.std.com> <arothwel.783301806@cisco.com> <CyKrsp.6zu@icdc.delcoelect.com> <1994Nov02.040130.28577@ksmith.com>
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