OK thanks. I did try 2g on top of 172g, that didn't work, but after
playing with 'limit' it did, all disks now have 3GB metadata.
On 11-Apr-20 22:21, Zygo Blaxell wrote:
The purpose of resize -2g was to make a little less unallocated space
on one drive compared to all the others, starting with all the drives
having equal unallocated space. The purpose of resize -172g was to
make the extra unallocated space on sdd go away, so it would be equal to
the other 3 drives. You have to do _both_ of those before the balance.
Or just add the two numbers, i.e. resize -174g.
If you really want to be sure, resize by -200g (far more than necessary),
then balance start -mlimit=4,devid=4. The balance is "I know there are
exactly 5 block groups now, and I want to leave exactly one behind,"
and the resize is "I want no possibility of new block groups on sdd for
some time."
