12:57 p.m.
Hello,
I just discovered oVirt, and before installing, I'm already a fan. I have a question
regarding the number of nodes needed for a cluster. My main end goal, is to have HA, where
I can have live migrations. I currently have 2 nodes (2 Dell R630s) that have a ton of
local SSD storage on them. Is it possible to setup oVirt with just 2 nodes, and have an
HA "hyper converged" style cluster?
I can't seem to find a solid answer for this question. I've read the
documentation, as well as consulted Google. I seem to get mixed answers. Is this
possible?
Thank you!
2:13 p.m.
Ovirt can be installed on as little as one node ,but for a proper HA setup
you should have at least three nodes.
Hci uses gluster and needs a replica 3 or replica 3 arbiter 1
configuration. With arbiter you need less storage as it only holds
metadata so you might be able to put a third server in your mix without
having to spend a lot on storage for it.
I would not attempt HA with anything less than three severs unless you are
using external storage such as nfs.
On Sat, Jun 15, 2019 at 3:42 PM <adam.fasnacht(a)gmail.com> wrote:
Hello,
I just discovered oVirt, and before installing, I'm already a fan. I have
a question regarding the number of nodes needed for a cluster. My main end
goal, is to have HA, where I can have live migrations. I currently have
2 nodes (2 Dell R630s) that have a ton of local SSD storage on them. Is
it possible to setup oVirt with just 2 nodes, and have an HA "hyper
converged" style cluster?
I can't seem to find a solid answer for this question. I've read the
documentation, as well as consulted Google. I seem to get mixed answers.
Is this possible?
Thank you!
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7:09 a.m.
Jayme,
Could the arbiter be a VM hosted on another host Host 3? I do have another server that I
could use, but it does not match the 2 main hosts. (Host 3 would not actually be used for
VM storage/running VMs.)
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adam.fasnacht＠gmail.com -
Jayme