[Linux-cluster] RHEL4 U4's qdiskd without disk or partition
Lon Hohberger
lhh at redhat.com
Fri Mar 30 13:54:51 UTC 2007
On Fri, Mar 30, 2007 at 04:12:09PM +1000, Isauro Michael Napolis wrote:
> hi all,
>
> i have a question regarding using ping for tie
> breaker in a redundant NIC with a crossover for the qdisk daemon WITHOUT
> the use of a disk/ partition. Has anybody made this work in RHEL4 U4?
It doesn't work right now, but there's no really good reason it *couldn't*
work.
The thing is that, of course, if you have a network partition caused by
a network anomaly - say an ARP storm (caused by maybe a switch loop, for
example) - where you can see the router, but not the other node, both
nodes will think they are quorate.
This isn't a problem - because one node will fence the other node first
;) So, in the worst case, it becomes a race-to-fence.
Anyone else see any problems with doing this?
-- Lon
--
Lon Hohberger - Software Engineer - Red Hat, Inc.
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