[Gluster-users] Expand distributed replicated volume with new set of smaller bricks

[Anh Vo]

We currently have a 3 node gluster setup each has a 100TB brick (total
300TB, usable 100TB due to replica factor 3)
We would like to expand the existing volume by adding another 3 nodes, but
each will only have a 50TB brick. I think this is possible, but will it
affect gluster performance and if so, by how much. Assuming we run a
rebalance with force option, will this distribute the existing data
proportionally? I.e., if the current 100TB volume has 60 TB, will it
distribute 20TB to the new set of servers?

Thanks

[Nithya Balachandran]

Hi,

Yes this is possible. Make sure you have cluster.weighted-rebalance enabled
for the volume and run rebalance with the start force option.
Which version of gluster are you running (we fixed a bug around this a
while ago)?

Regards,
Nithya

Post by Anh Vo
We currently have a 3 node gluster setup each has a 100TB brick (total
300TB, usable 100TB due to replica factor 3)
We would like to expand the existing volume by adding another 3 nodes, but
each will only have a 50TB brick. I think this is possible, but will it
affect gluster performance and if so, by how much. Assuming we run a
rebalance with force option, will this distribute the existing data
proportionally? I.e., if the current 100TB volume has 60 TB, will it
distribute 20TB to the new set of servers?
Thanks
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http://lists.gluster.org/mailman/listinfo/gluster-users

[Anh Vo]

We are using 3.8.15 I believe (the one comes with ubuntu 16.04). Do you
know when this was fixed?

Thanks

Post by Nithya Balachandran
Hi,
Yes this is possible. Make sure you have cluster.weighted-rebalance
enabled for the volume and run rebalance with the start force option.
Which version of gluster are you running (we fixed a bug around this a
while ago)?
Regards,
Nithya

Post by Anh Vo
We currently have a 3 node gluster setup each has a 100TB brick (total
300TB, usable 100TB due to replica factor 3)
We would like to expand the existing volume by adding another 3 nodes,
but each will only have a 50TB brick. I think this is possible, but will it
affect gluster performance and if so, by how much. Assuming we run a
rebalance with force option, will this distribute the existing data
proportionally? I.e., if the current 100TB volume has 60 TB, will it
distribute 20TB to the new set of servers?
Thanks
_______________________________________________
Gluster-users mailing list
http://lists.gluster.org/mailman/listinfo/gluster-users