2016-10-26 23:07 GMT+02:00 Joe Julian <joe@xxxxxxxxxxxxxxxx>: > And yes, they can fail, but 20TB is small enough to heal pretty quickly. 20TB small enough to build quickly? On which network? Gluster doesn't have a dedicated cluster network, if the cluster is being hevily accessed, the healing will slow down everything else (or everything else will slow down the healing) Anyway, you can heal quickly, but I still prefere to have data safe on each node. If you start with 3 server at once, probably each disk is coming from the same batch, thus a massive disks failure is easy to get. If you loose only 2 disks, one for each server, from the same replica group, you are game over. With RAID6, you have to loose 5 disks from the same replica group. In my environment, I can create 4 RAID-0 on each server (3 disks on each RAID0), or 2 RAID-6 with 6 disks each, or 1 RAID-6 with 12 disks or 1 RAID-7 with 12 disks (RAID-7 with less than 12 disks is non-sense) I don't know which one is better. _______________________________________________ Gluster-users mailing list Gluster-users@xxxxxxxxxxx http://www.gluster.org/mailman/listinfo/gluster-users
