[linux-lvm] Size of the mirror log?

Milan Broz mbroz at redhat.com
Wed Jan 28 16:56:43 UTC 2009

malahal at us.ibm.com wrote:
> Lupe Christoph [lupe at 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.

mbroz at redhat.com

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