Hi,
I'm experimenting with a HA setup on two physical boxes. The idea is to
create virtual Xen machines that automagically do live migration from
one physical box to the other in case of e.g. a hardware failure on one
of the physial boxes.
My idea is to create a software raid of networked block devices and real
disks. I.e:
Box A:
Software raid consisting of:
Physical disk in box A
Nework block device exported from box B
Box B:
Software raid consisting of:
Physical disk in box B
Network block device exported from box A
On top of this I plan t use GFS2 and a cluster that handles the
migration of the virtual machines.
Any comments on this, would this work, or would it result in deadlock?
What about quorum disk? I suppose
I need one? Most setup of these kind of things usually have their
storage on a separate
SAN, but as this is mostly for experimentation and testing purposes, I
would hope that I could do without that for now.
What would be the best way to export the network block devices? I'm
thinking iSCSI or GNDB?
If this doesn't look like a good idea, are there any other way to do this.
Regards
Uno Engborg
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