Gluster users - Jul 2016 - Expand distributed replicated volume

On Tue, Jul 12, 2016 at 3:57 PM, Gandalf Corvotempesta <
gandalf.corvotempesta at gmail.com> wrote:
> 2016-07-12 11:49 GMT+02:00 Pranith Kumar Karampuri <pkarampu at
redhat.com>:
> > Alternatively you can replace 4 selected bricks on the first 3 nodes
with
> > the 4 disks on the new machine. Now you have 4 bricks that can be
reused.
> > Form extra 2 replica sets with 3 bricks each and you are done.
>
> This is unclear to me.
> Are you saying to create a new replica set with the newly added bricks
> or with the older replaced bricks ?
>
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.

>
> This is not what I want. I would like to *add* bricks and increase
> spaces to the same volume/replica set.
>
We essentially did add-bricks at the end :-).


-- 
Pranith
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2016-07-12 12:34 GMT+02:00 Pranith Kumar Karampuri <pkarampu at
redhat.com>:
> 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.