Dear Users, just one year ago, we implemented a tier2 storage based on GlusterFS v.3.10.5 and we can say that it works like a charm. The GlusterFS volume has been created using 3 physical servers (each server contains 12 disks, 1 brick per disk). Below, you can find some information about the gluster volume type
Volume Name: tier2 Type: Distributed-Disperse Volume ID: a28d88c5-3295-4e35-98d4-210b3af9358c Status: Started Snapshot Count: 0 Number of Bricks: 6 x (4 + 2) = 36 Transport-type: tcp Now, it's time to expand this volume so we bought 3 new servers similar to the 3 existing servers. Since we would like to upgrade the Gluster version to last available one, we would like to know if the following action plan is correct and safe: 1) creation of a new gluster distributed disperse volume (6x(4+2)) using the 3 new servers and the new gluster version; 2) copy of all the data saved on the old gluster volume to the new one; 3) complete erasure of three old servers operating system; 4) installation of the last available version of the operating system and glusterfs software stack on the three old servers; 5) expansion of the volume (created at point nr.1) adding the new bricks (created at point nr.4) If our action plan can be considered "validated", I have an other question: - in order to copy the data from the old volume to the new one, I need a third machine that can mount both the volumes; it's possible? if yes, which gluster client version should I use/install on the "bridge" machine? Thank you very much for your attention. Regards, Mauro
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