[Linux-cluster] [Openais] Newbie clustering questions
jfriesse at redhat.com
Fri Jun 6 07:37:50 UTC 2014
> Hi Jan
> Many thanks for your response.
> I spent some more time on this yesterday so I found out that the nodes
> needs really to have 2 nics, 2 ip's and the resource ip gets assigned to
> the node that becomes the running node.
You don't need two nics. Even tho it's better, because you have
separated cluster traffic from app traffic.
> I have setup vmware fencing for each node, but I could not see anything in
> the configuration to allow or disallow one node to fence of the other or
> does this happen automagically? apologies if the question seem a bit stupid
Yes, it is happening automatically as long as you've configured fencing
for every node.
> but 1 week ago I started this project with very little experience in
> clustering :)
That's why I'm recommending you to ask linux-cluster at redhat.com and read
> Per Qvindesland
> On Thu, Jun 5, 2014 at 9:36 AM, Jan Friesse <jfriesse at redhat.com> wrote:
>> it looks like none of your question is really corosync related (so I'm
>> CC'ing linux clustering <linux-cluster at redhat.com> (this is really
>> better list) but I will try to answer at least some of your questions.
>>> Hi all
>>> I have redhat clustering running on a 3 VMware vm's 2 nodes and 1
>>> management server I can join the nodes without any problems but I got a
>>> couple of questions that I hope someone here can shed some lights on for
>>> If I want to add a ip resource to the cluster must both nodes be
>>> with a interface with that ip or is there a better way of doing it? If
>> You must make sure that NO nodes has this address assigned. IPAddr
>> resource will take care to add ip to interface.
>>> then can one of the nodes have the nic in standby?
>> I don't think this is supported by any resource script.
>>> How do I add fencing for a VMware vm's I notice that there is the VMware
>>> soa must the each vm be configured with its individual VMware soa fencing
>>> or is fencing not needed? From what I can read fencing is needed.
>> Every node must be able to fence any other node. So you have to
>> configure fencing method for every node.
>> In theory fencing is not needed as long as you are not using shared
>> storage, but it's still better to have it.
>>> I am using Centos .6.5 with ESXI 4.1
>>> Many thanks for your time
>>> Openais mailing list
>>> Openais at lists.linux-foundation.org
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