[PVE-User] What is the purpose of second gluster server in storage config?

Igor Podlesny pve-user at poige.ru
Sat Apr 6 08:39:10 CEST 2019


-- Beyond of the obvious "well, it's for redundancy". That's obvious..
but "What subsystems and under what circumstances are gonna use it?"
-- isn't at all.

I have strong suspicion that qemu-kvm isn't capable of fail-over
switching in case its primary gluster server went down. At least
preliminary tests showed that on single node's (that is a part of
replicated gluster cluster setup) failure VM's disks are gone
(effectively are kinda pulled off for VMs).

Second server's IP isn't even seen among arguments of kvm process.

Moreover, /proc/mounts doesn't even contain any mention of
backup-volfile-servers or similar options.

-- 
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