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Date: Wed, 28 Jan 2009 09:14:30 -0800
From: malahal@us.ibm.com
Subject: Re: [linux-lvm] Size of the mirror log?
Message-ID: <20090128171430.GA13592@us.ibm.com>
References: <20090128085024.GA14023@lupe-christoph.de>
	<20090128162636.GA12514@us.ibm.com> <49808E4B.7080804@redhat.com>
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Milan Broz [mbroz@redhat.com] wrote:
> malahal@us.ibm.com wrote:
> > Lupe Christoph [lupe@lupe-christoph.de] wrote:
> >> I'm unable to find any information on how the size of the mirror log is
> >> determined. Right now I only have four volumes of 1GB each to test this,
> >> obviously too little. We will be getting a few 128GB volumes soon, but I
> >> would rather have a formula than some test results...
> >>
> >> I presume the size will depend on the number of mirror regions, but how
> >> much log does a region require?
> > 
> > Currently the log size is fixed at 1 PE (4MB by default). It is always a
> > 1 PE.
> 
> Since LVM2 2.02.44 release mirror log size is properly calculated and can
> be higher, it is not fixed to 1 PE anymore.
> 
> 
> Milan

Thank you Milan. I was looking at the 2.02.43 that I was working with.

--Malahal.