On 7/11/2013 2:41 PM, Marcy Cortes wrote:
Under z/VM right?
OCFS2 is pretty simple if the amount of space you need fits on a minidisk.
If you need cLVM, it's complicated.
The HAE guide helps some, but doesn't really put it into cook book format.
It's like a layer cake and you have to each layer working right first or you
end up hanging or getting your servers in reboot loops.
I intend to write up something if I can ever get it to work the same way twice
without futzing with it. In my copious free time of course.
Well, you've made me feel better. I thought I was being addle minded
about the whole thing.
What has complicated it for me even more is that I'm doing DRBD
replication of a multi-minidisk VG between sites (active/active) with 2
nodes (active/passive) at each site using DRBD's floating IP scheme
rather than stacking. I have gotten it to work once or twice, but, like
you, just can't get consistent enough results to actually claim I was
successful. :-)
If I keep it active/passive between sites and leave out the OCFS2 (and
pre/coreqs) everything works beautifully. Fortunately, Middleware is
giving me a pass for a while and are gonna stick with active/passive for
now. But, they will come a knockin', so I do need to get active/active
to work.
And I've sent corosync into more loops than the Blue Angels have done
since their inception! Only way to stop the process is to kill it, at
which point one of the other nodes will probably start doing the same
thing. Wind up just doing a reboot (a clean stop of openais will
usually hang) of all of the nodes.
Leland
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