4:29 a.m.
Hello,
What is the recommended way to offer high availability to Guests?
For example, let host1, host2 and host3 be libvirt and KVM/Qemu enabled.
If I start a guest in host1, how can I guarantee that it will stay
online if host1 goes down?
GlusterFS, for example, would take care of storage; but what about CPU
and RAM? How can this be accomplished?
Thank you for any feedback or comment in adavance.
--
It's hard to be free... but I love to struggle. Love isn't asked for;
it's just given. Respect isn't asked for; it's earned!
Renich Bon Ciric
http://www.woralelandia.com/
http://www.introbella.com/
11:11 p.m.
On Sat, Sep 29, 2012 at 6:29 AM, Renich Bon Ciric
<renich(a)woralelandia.com> wrote:
Hello,
What is the recommended way to offer high availability to Guests?
For example, let host1, host2 and host3 be libvirt and KVM/Qemu enabled.
If I start a guest in host1, how can I guarantee that it will stay
online if host1 goes down?
GlusterFS, for example, would take care of storage; but what about CPU
and RAM? How can this be accomplished?
Thank you for any feedback or comment in adavance.
--
It's hard to be free... but I love to struggle. Love isn't asked for;
it's just given. Respect isn't asked for; it's earned!
Renich Bon Ciric
http://www.woralelandia.com/
http://www.introbella.com/
Hi,
Didn`t hear of such HA features for QEMU-KVM, but for Xen guests you
may be interested in looking on Remus project.
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11:22 p.m.
On Sat, Sep 29, 2012 at 4:11 PM, Andrey Korolyov <andrey(a)xdel.ru> wrote:
Hi,
Didn`t hear of such HA features for QEMU-KVM, but for Xen guests you
may be interested in looking on Remus project.
Thanks. I do prefer KVM/Qemu honestly. But it's good to know of this
alternative. Thanks.
--
It's hard to be free... but I love to struggle. Love isn't asked for;
it's just given. Respect isn't asked for; it's earned!
Renich Bon Ciric
http://www.woralelandia.com/
http://www.introbella.com/
11:27 p.m.
Actually, I've been reading about the corosync, iSCSI, drbd, libvirt
approach. The only thing I don't like about this approach is that you
actually need to access the Guest/Domain in order to provide the HA
service.
My optimal solution would be one that doesn't need you to touch the
Guests/Domains in any way and, at the same time, provides HA for
storage and computing resources.
While I write this, I can't imagine a good way of sharing the Guest's
RAM so it is replicated on other hosts. This seems like cluster-like
functionality.
Is it feasible to setup a cluster or grid which share RAM so a single
kernel manages all hosts or something?
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participants (2)
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Andrey Korolyov -
Renich Bon Ciric