[Pacemaker] Failover domains?

[Serge Dubrouski]

On Tue, Oct 26, 2010 at 12:59 PM, David Quenzler <quenzler at gmail.com> wrote:
> Other than single point of control, there is no reason multiple
> clusters could not be used.
> What would the best practice be?

For me the simpler is better and again for me that would be 2 clusters
with a simple configuration. As for single point of control as far as
I know GUI can connect to the remote cluster and control it.

BTW, it would be good if CRM shell could do the same but I doubt that
that's possible.

>
> On 10/26/10, Serge Dubrouski <sergeyfd at gmail.com> wrote:
>> On Tue, Oct 26, 2010 at 12:24 PM, David Quenzler <quenzler at gmail.com> wrote:
>>> How about something like...
>>>
>>> Cluster with 4 nodes: node1 node2 node3 node4
>>>
>>> ResourceA runs only on node1 and node2, never on node3 or node4
>>> ResourceB runs only on node3 and node4, never on node1 or node2
>>
>> Just curios, what is the point of building a 4-node cluster in this
>> case instead of 2 clusters of 2 nodes each?
>>
>>>
>>> On 10/26/10, Pavlos Parissis <pavlos.parissis at gmail.com> wrote:
>>>> On 25 October 2010 19:50, David Quenzler <quenzler at gmail.com> wrote:
>>>>
>>>>> Is there a way to limit failover behavior to a subset of cluster nodes
>>>>> or pin a resource to a node?
>>>>>
>>>>>
>>>> Yes, there is a way.
>>>>
>>>> Make sure you have a asymmetric cluster by setting symmetric-cluster to
>>>> false
>>>> and then configure accordingly your location constraints in order to have
>>>> the failover domains as you wish.
>>>>
>>>> Here is en example from my cluster where I have 3 nodes and 2 resource
>>>> group. Each resource group have unique primary node but both of them have
>>>> shared secondary node.
>>>>
>>>> location PrimaryNode-pbx_service_01 pbx_service_01 200: node-01
>>>> location PrimaryNode-pbx_service_02 pbx_service_02 200: node-02
>>>>
>>>> location SecondaryNode-pbx_service_01 pbx_service_01 10: node-03
>>>> location SecondaryNode-pbx_service_02 pbx_service_02 10: node-03
>>>>
>>>>
>>>> Cheers,
>>>> Pavlos
>>>>
>>>
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>>>
>>
>>
>>
>> --
>> Serge Dubrouski.
>>
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>>
>
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>



-- 
Serge Dubrouski.