On 09/08/11 18:23, Lars Ellenberg wrote:
On Thu, Sep 08, 2011 at 09:07:25AM -0700, SlingPirate wrote:
Sorry about this it's just that I want to be absolutely certain.
With the 3 node setup i could have both node 1& node 2 reading& writing at
the same time?
Both local nodes would
No, of course not. And that is not needed.
How about one DRBD per VM backing store block device?
But if you insist on the complexity of using image files on some cluster
file system on dual primary DRBD, with proper fencing, of course,
that's your call. That would not necessarily help to improve your
availability, or performance, though.
Lars Ellenberg wrote:
On Thu, Sep 08, 2011 at 08:47:12AM -0700, SlingPirate wrote:
If I want to run VMs on both node 1& node 2 they would need to be setup
as
dual primaries, is this not the case?
No.
What I was trying to achive was two on-site servers that could fail over
to
one another OR in case both die node 3 runs all the servers (rather
slowly
of course!)
Do a "classic" stacked three node setup.
Sorry for my ignorance but I dont quite understand your diagram for the
alternative.
No need anymore...
What about of he wants to have HVM DomUs? Would he still be able to do
without the complexity of a cluster filesystem and image files?
I could be wrong, but that is what I understand from:
http://www.drbd.org/users-guide/s-xen-configure-domu.html
"There are three sets of circumstances under which you cannot use this
approach:
You are configuring a fully virtualized (HVM) domU."
thx!
B.
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