Sorry if it's a duplicate: I go an error on post... And yes I posted it on the Gluster
slack first, but I am using Gluster only because the marketing on oVirt HCI worked so
I got 3 recycled servers for an oVirt test environment first and set those up as 3-node
HCI using defaults mostly, 2 replica + 1 arbiter, 'engine', 'vmstore' and
'data' volumes with single bricks for each node. I call these group A.
Then I got another set of five machines, let's call them group B, with somewhat
different hardware characteristics than group A, but nicely similar between themselves. I
wanted to add these to the farm as compute nodes but also use their storage as general
GlusterFS storage for a wider use.
Group B machines were added as hosts and set up to run hosted-engine, but they do not
contribute bricks to the normal oVirt volumes 'engine', 'vmstore' or
'data'. With some Ansible trickery I managed to set up two dispersed volumes (4
data: 1 redundancy) on group B 'scratch' and 'tape', mostly for external
GlusterFS use. oVirt picked them up automagically, so I guess they could also be used with
I expect to get more machines and adding them one-by-one to dispersed volumes with a fine
balance between capacity and redundancy made me so enthusiastic about oVirt HCI in the
After some weeks of fine operation I had to restart a machine from group B for
maintenance. When it came back up, GlusterD refuses to come online, because it doesn't
have "quorum for volumes 'engine', 'vmstore' and
It's a small surprise it doesn't *have* quorum, what's a bigger surprise is
that it *asks* for quorum in a volume where it's not contributing any bricks.
What's worse is that it then refuses to start serving its bricks for 'scratch'
and 'tape', which are now growing apart without any chance of healing.
How do I fix this?
Is this a bug (my interpretation) or do I fundamentlly misunderstand how Gluster as a
hyper scale out file system is supposed to work with potentially thousands of hosts
contributing each dozens of bricks to each of hundreds of volumes in a single name space?
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