On Tue, Jul 12, 2016 at 4:06 PM, Gandalf Corvotempesta <gandalf.corvotempesta@xxxxxxxxx> wrote:
True. But at the end of 4 replace-bricks, you have 4 bricks from earlier configuration which are empty now, which can be re-used. So essentially you have 6 empty bricks which can be put back into use, but these can be used to form replica sets as they are not from same machine. So you add-brick 2 replica sets with these 6 bricks and do rebalance. Makes sense?2016-07-12 12:34 GMT+02:00 Pranith Kumar Karampuri <pkarampu@xxxxxxxxxx>:
> If you add 6 new disks to the cluster by bringing in a new node with replica
> count 3 you are essentially are adding 2 replica sets. Since you can't have
> replica sets with bricks from same node, we need to get empty bricks from
> other nodes which require replace-brick operation.
If I replace existing bricks, i'm not adding free space but only move
data around.
--
Pranith
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