[linux-lvm] lvconvert alloc policy

[Bryn M. Reeves]

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Levy Abinajm Melero Sant'Anna wrote:
> root at atom:~# lvconvert -v -m 1 /dev/archvg/onhomelv /dev/sdb1
>     Checking for existing volume group "archvg"
>     Archiving volume group "archvg" metadata (seqno 6).
>   Not enough PVs with free space available for parallel allocation.
>   Consider --alloc anywhere if desperate.

Your archvg has two PVs. When you specify -m1 you create a two-sided
mirror with an on-disk persistent log. The log requires a 3rd PV
(although only a very small amount of space on it).

Regards,
Bryn.
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