[Gluster-users] Expanding replicated volume

[Mathieu Chateau]

Hello,

in replicated setup, all bricks have all data. So you need to grow all
bricks, or do a distributed + replicated volume

I would stay with 2 bricks and extend current volume or add another volume
to the current brick

No need to change fstab. It will try first server1 and server2 as a backup
if first is offline. Then gluster client get all nodes from the one it's
connected too.
So even if you have 50 bricks, no change in fstab.


Cordialement,
Mathieu CHATEAU
http://www.lotp.fr

2015-09-07 2:58 GMT+02:00 Antun Krasic <antun at martuna.co>:

> Hello,
>
> I have two servers with replica 2 setup, with total of 380GB of disk space
> ( gluster volume create datastore replica 2 transport tcp
> server1:/datastore server2:/datastore).
>
> I'd need to add more capacity to the servers, I know I need to add 2 more
> servers to the configuration, however do they need to be with the same disk
> size ? Meaning, if I add a 2 VMs with 20GB bricks, that would expand the
> volume by 20GB ?
>
> Second part is mounting, I'm curious if anything would change in the
> current fstab entry:
>
> server1:/datastore /mnt/datastore glusterfs
> default,_netdev,backupvolfile-server=server2 0 0
>
> Gluster would properly utilize all 4 servers in this case, or fstab entry
> needs to be modified ?
>
> Thank you!
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