hardware-raid-ydelse

From: Claus Guttesen (none@cguttesen--yahoo.dk.lh.bsd-dk.dk)
Date: Mon 04 Oct 2004 - 13:12:33 CEST

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Date: Mon, 4 Oct 2004 13:12:33 +0200 (CEST)
From: Claus Guttesen <none@cguttesen--yahoo.dk.lh.bsd-dk.dk>
Subject: hardware-raid-ydelse
To: bsd-dk <none@bsd-dk--bsd-dk.dk.lh.bsd-dk.dk>

Hej.

Jeg har en Dell 2850'er med seks interne scsi-diske på
en Perc 4e/Di-controller. Jeg skal bruge den som
postgresql-server. Lige nu er den sat op med raid 5 +
en hot-spare. Den konventionelle visdom siger at raid
0+1 vil give den bedste ydelse, hvilket bl.a. kan
læses på
http://www.storagereview.com/guide2000/ref/hdd/perf/raid/concepts/perfReadWrite.html.

Men hvad er Jeres erfaring?

Selve database-dumpen er efterhånden oppe på 3,1 GB,
den største tabel har ca. 10 mill. rækker.

Hilsen
Claus

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