Hi Daniel,
I'm using KVM/Qemu with GlusterFS. The virtual machine images are stored
on the Gluster filesystem, so there is always a copy of the virtual
machine image on both cluster nodes. And you can even do a live migrate
of a running guest from one node to the other.
So if a host fails, all its guests will die with it, but you can restart
them on the other node if you have enough resources.
Regards, Paul Boven.
On 03/18/2014 01:51 PM, Daniel Baker wrote:
Hi Lucian,
but Glusterfs is at least trying to replicate the QEMU image onto the
other node ? That's the whole point of the replication isn’t it ?
Thanks for the help,
Dan
----------------------------------------------------------------------
Message: 1
Date: Mon, 17 Mar 2014 20:29:30 +0700
From: Daniel Baker <info@xxxxxxxxxxxxxxxxxxxxxx>
To: gluster-users@xxxxxxxxxxx
Subject: Does QEMU offer High Availability
Message-ID: <5326F8BA.7010300@xxxxxxxxxxxxxxxxxxxxxx>
Content-Type: text/plain; charset=ISO-8859-1
HI all,
If I use QEMU in Glusterfs 3.4.2 can I achieve true High Availability.
If I have two nodes that are clustering a QEMU image and one of them
goes down will the other QEMU image take its place.
Can I really achieve that ?
Thanks,
Dan
------------------------------
Message: 2
Date: Mon, 17 Mar 2014 13:48:45 +0000
From: Nux! <nux@xxxxxxxxx>
To: gluster-users@xxxxxxxxxxx
Subject: Re: Does QEMU offer High Availability
Message-ID: <c5ba49ac0de0faf0ab1257a7f1800f31@xxxxxxxxx>
Content-Type: text/plain; charset=UTF-8; format=flowed
On 17.03.2014 13:29, Daniel Baker wrote:
HI all,
If I use QEMU in Glusterfs 3.4.2 can I achieve true High Availability.
If I have two nodes that are clustering a QEMU image and one of them
goes down will the other QEMU image take its place.
Can I really achieve that ?
Dan,
This is not really a discussion for the gluster lists.
You should ask KVM people, but to answer you briefly:
- No, KVM is just a hypervisor, it runs virtual machines and that's all
it does.
You need to run additional RedHat clustering stuff around it to achieve
HA.
HTH
Lucian
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--
Paul Boven <boven@xxxxxxx> +31 (0)521-596547
Unix/Linux/Networking specialist
Joint Institute for VLBI in Europe - www.jive.nl
VLBI - It's a fringe science
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