On 13/01/20 15:49, Zdenek Kabelac wrote:
Hi

Well the size is 'almost' 16GiB - and when the size of thin-pools metadata is always maintained by lvm2 - it's OK -  the size is internally 'clamped' correctly - the problem is when you use this size 'externally' - so you make 16GiB regular LV used for thin-repair - and then you swap-in such LV into thin-pool.

So to make it clear - when you 'lvcreate' thin-pool with 16GiB of metadata - it will work - but then when you will try to fix such thin-pool - it will fail.  So it's always better to create thin-pool with  -L15.812G then using  16G.

Understood, thank you so much.

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