Bacula-users

Re: [Bacula-users] minimize iowait

2008-12-11 15:02:59
Subject: Re: [Bacula-users] minimize iowait
From: "John Drescher" <drescherjm AT gmail DOT com>
To: "Lukasz Szybalski" <szybalski AT gmail DOT com>
Date: Thu, 11 Dec 2008 15:01:07 -0500
> In the example you given here
> http://forums.gentoo.org/viewtopic-t-709075-highlight-.html
>
> md1 has a chunk size of 256K vs md2 has 64K is that something I can
> set? is there a preferred chunk size ? Can that be changed or is that
> system hardware set only?
>

You set this when you create the array. I created arrays with larger
chunk sizes years ago before I did performance analysis and found the
larger chunk sizes detrimental to write performance.

John

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