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GlusterFS : How to change the ip used by servers while in production?

cn flag

I have a 4 nodes Proxmox cluster in which each member is connected to the network by a single Gigabit Ethernet socket.

In this cluster, I have a GlusterFS with 3 volumes installed on the proxmox hosts servers itself (not on a VM). (this was installed by my predecessor, I wouldn't have done this myself)

As you may imagine, I often have a lot GlusterFS errors (split brains, heal etc etc.. ) as the Gigabit Ethernet is easily saturated..

But I happen to have at a least a spare Ethernet socket on each server and I wanted to use it to create another network and use it for Gluster operations.

Thus I need to

  • create said network : That's easy
  • change configuration progressively for each Gluster node to use said network.. Without putting down the 80 VM we have in production. And for that I have no idea how to do it..

Could you help me ?

mangohost

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