[linux-lvm] metadata device too small

Gionatan Danti g.danti at assyoma.it
Mon Jan 13 14:32:56 UTC 2020

On 12/01/20 19:11, Zdenek Kabelac wrote:
> With 16G there is 'problem' (not yet resolved known issue) with 
> different max size used by thin_repair (15.875G) & lvm2 (15.8125G) tools.
> If you want to go with current max size supported by lvm2 - use the 
> value -L16192M.

Hi Zdenek,
just for confirmation: so using a 16 GiB thin metadata volume *will* 
result in activation problems? For example, a

lvcreate --thin system --name thinpool -L 100G --poolmetadatasize 16G

will be affected by the problem you wrote above?

Finally, does it means that lvmthin man page is wrong when stating that 
"Thin pool metadata LV sizes can be from 2MiB to 16GiB" (note the GiB 
suffix rather than GB)?


Danti Gionatan
Supporto Tecnico
Assyoma S.r.l. - www.assyoma.it
email: g.danti at assyoma.it - info at assyoma.it
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