LV volume space always loses 33M?

[Gabriel M Dragffy]

On Sun, 2006-09-03 at 09:53 -0400, Luis wrote:
> man pvcreate
> ...
>        --metadatasize size
>               The  approximate  amount of space to be set aside for each meta
>               data area.  (The size you specify may get rounded.)
> ...
> 
> 33M is the default. Read the docs for what this means.
 Thanks, I've just read the man. What it doesn't say is how much space
it really needs? Or even what exactly it contained in the meta data, if
I don't know these two variables then how can I instruct it to create a
metadata structure of a certain value. Hmmm, I'd just like to understand
better that's all.