On Feb 16, 2009, at 11:53 AM, Glory Smith wrote:
having an unreliable stonith mechanism is worse than not having one
at all.
what if your resource fencing has a bug? its the same problem.
reliable fencing is a fundamental requirement of the cluster.
i understand . but If i can do both (node as well as resource
fencing) then there is very very rare chance that both will fail at
same time.
You can have multiple stonith devices. If one fails, we just try the
next.
i will again say it would be really good if something can be done to
implement resource fencing in openais-pacemaker. dont you agree with
this.
I get the feeling that by "resource fencing", you just mean scsi
reservations which are already possible in the current framework.
2) no, it cant.
it wont have quorum and therefor isn't allowed to start cluster
resources
if i set no-quourm to stop (Which is default) then i feel following
things will happen
1) resouces will be stopped at all nodes who belong to no-quourm
partition and fail over to a nodes which have quorum.
2) All nodes of no-quorum partion will be stonithed by nodes having
quorum.
am i right?
correct. although 2) usually happens a lot faster than 1).
if openais -pacemaker provide something for resouce fencing we
would have completely ruled out above possiblities Please share
your view.
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