Subject: Re: [linux-audio-dev] Software RAID and disk throughput/latency issues
From: Jörn Nettingsmeier (nettings_AT_folkwang-hochschule.de)
Date: Mon Jan 21 2002 - 11:14:55 EET
Sage Weaver wrote:
>
> Apologies if this is old hat to some of y'all, but I was curious to know if
> anybody has had any experience using a software RAID disk configuration for
> multitrack audio purposes, like with Ardour. I'm particularly interested to
> know how a software RAID 1 (mirroring) setup holds up in such an environment
> - does the overhead needed to write to two disks cause a problem? Does the
> (theoretical) ability to read from two disks at once help out at all?
i think so. when you have the disks on separate ide channels, you
should see a greatly improved reading performance.
however, there might be a small overhead for writing.
if you're in for performance, i'd say get a decent backup medium and
go for striping (RAID 0).
one system disk, and a RAID0 pair for data.
> Is it
> highly recommended I not do this with ATA/100 disks? Any info is greatly
> appreciated. :)
ata/100 should be fine. so is ata/33, unless a single disk really
cam exceed this throughput rate, which i can't see at the moment.
(not talking about burst cache reads !)
regards,
jörn
-- Jörn Nettingsmeier home://Kurfürstenstr.49.45138.Essen.Germany phone://+49.201.491621 http://spunk.dnsalias.org http://www.linuxdj.com/audio/lad/
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