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Date: Wed, 28 Jan 2009 17:56:43 +0100
From: Milan Broz <mbroz@redhat.com>
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Subject: Re: [linux-lvm] Size of the mirror log?
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To: LVM general discussion and development <linux-lvm@redhat.com>

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
--
mbroz@redhat.com