Gluster volume conversion

[Leo David]

Hi Everyone,
Although the question has more to do with gluster itself, I took my chance and wrote it down...
I have started with one storage server that exposes a couple of volumes, each being configured as distributed single bricks volumes.
ie: ssd volume - one brick (distributed ), sata - one brick ( distributed ).
Now, I am in the situation that I need to join another two servers to the cluster, and have the volumes replica 3, while keeping all the data intact. All serveres have identical hw configuration.
Other saying, I need to convert ssd volume to replica 3, and rebalance it accross all 3 servers.
Ive searched across internet, but could't find a way to accomplish that..
Any thoughts or recomandations ?
Thank you very much !

Leo

 

[Dark26]

Bonjour

I think it's something like that

gluster volume add-brick test-volume replica 2 server2:/location2

and then

gluster volume add-brick test-volume replica 3 server3:/location3

perhaps this works too :

gluster volume add-brick test-volume replica 3 server2:/location2 server3:/location3

and then you rebalance the volume, but with replica 3 a i think it does it itself when you add the bricks because all the files are replicate.

you can create a test volume and test this.


i use this method when a hardrive failed for a brick.

reduce the replica from 2 to 1 for example, and the readd the new brick with replica 1 to 2

 

[Leo David]

This worked !
Thank you so much Dark26 !
Cheers,

Leo