Re: [ovirt-users] Upgrading HC from 4.0 to 4.1

Are the gluster peers configured with the same hostnames/IPs as your hosts within oVirt? Once they're configured on the same network, separating them might be a bit difficult. Also, the last time I looked, oVirt still doesn't support managing HCI oVirt/Gluster nodes running each service on a different interface (see below). In theory, the procedure would involve stopping all of the Gluster processes on all of the peers, updating the peer addresses in the gluster configs on all of the nodes, then restarting glusterd & the bricks. I've not tested this however, and it's not a "supported" procedure. I've no idea how oVirt would deal with these changes either. To properly separate my own storage & management networks from the beginning, I configured each host with 2 IPs on different subnets and a different hostname corresponding to each IP. For example, "v0" points to the management interface of the first node, and "s0" points to the storage interface. oVirt's problem is that, whilst it can see the pre-configured bricks and volumes on each host, it can't create any new bricks or volumes because it wants to use the same hostnames it uses to manage the hosts. It also means that it can't fence the hosts correctly, as it doesn't understand that "v0" & "s0" are the same host. This isn't a problem for me though, as I don't need to manage my Gluster instances via the GUI, and automatic fencing can be done via the IPMI interfaces. Last I read, this is a recognised problem, but a fix isn't expect to arrive any time soon. -- Doug