On 05/21/2012 03:02 PM, Neil wrote:
I'm very new to oVirt and I have some questions that I can't seem to find answers for, so please go easy on me.
We are looking at implementing a HA KVM virtualization environment over two(3 in total at a later stage) physical nodes using oVirt for about 8 guests using Centos 6.2.
What I am looking at doing is using a fibre channel SAN to implement shared storage by allowing both physical nodes to see the same LUN on the SAN so that both physical nodes will have access to a shared filesystem for storing guest images on. I've opted for the shared LUN/storage approach to allow for HA and live migration of guests between the physical nodes.
Do I need to configure GFS2 before oVirt so that both physical nodes can have access to the same LUN for the guest images; or will oVirt automatically handle locking/fencing etc. on the common filesystem?
I've tried using luci/ricci to setup a "storage" cluster using GFS2 with oVirt mounting the GFS2 filesystem as a local directory, but this seems far from ideal.
You don't need GFS2 or any other filesystem. Just create a Fibre Channel storage domain with your LUNs and oVirt will use them directly without any filesystem involved.