Re: [Users] Node crash
On 02/07/2012 10:58 PM, зоррыч wrote:
Hi.
If one of the node crash, virtual servers running on it is not possible
to recover. oVirt does not permit to run a virtual server running on the
faulty node repeatedly and asked to restore the node.
What to do if a node crash in a very long time? It is possible to
restore the virtual servers running on it?
the node should be fenced to release the resources by configuring power
management (and ovirt engine will fence it).
if you can't/won't configure fencing, you can manually confirm the node
has been shut down, so engine will know it is no longer running the VMs.
if you will not configure fencing correctly, or hit 'manual confirm'
without actually shutting it down - it *will* corrupt any VM running on
more than a single host.
There are mechanisms backup virtual servers, so that when node crash the
virtual server will automatically run on another node?
yes - fencing (edit host, power managment).
engine will also auto start VMs which are flagged as HA VMs.