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Date:      Tue, 29 May 2001 01:23:28 +0000 (GMT)
From:      "E.B. Dreger" <eddy+public+spam@noc.everquick.net>
To:        hackers@FreeBSD.ORG
Subject:   Re: brainstorm: "intermediate" disk caching
Message-ID:  <Pine.LNX.4.20.0105290122130.10997-100000@www.everquick.net>
In-Reply-To: <Pine.BSF.4.32L2.0105281858470.86403-100000@shell-1.enteract.com>

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> Date: Mon, 28 May 2001 19:01:37 -0500 (CDT)
> From: David Scheidt <dscheidt@tumbolia.com>

[ snip ]

> If you're really interested in database performance, remember "Spindles
> is good."  Spreading your IO load over as many seperate disks, on as
> many independent IO channels as practical will improve performance.

There's the problem.  With RAID 1+0, total the storage of the spindles,
and half of that is usable.  With RAID 5, it asymptotically approaches
unity.


Eddy

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Date: Mon, 21 May 2001 11:23:58 +0000 (GMT)
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