[Linux-cluster] RedHat Cluster Suite cluster resource management
Lon Hohberger
lhh at redhat.com
Fri Nov 14 22:02:03 UTC 2008
On Thu, 2008-11-13 at 15:14 +0100, Mauro Casiraghi wrote:
> I had created this cluster configuration with Redhat Cluster Suite
>
> I Have one Service Group with the follow resources
>
> Service Group Name : WEB
>
> Resources of the service group:
>
> 1) IP_ADRESS
> 2) APACHE
>
> The resource dependency are:
>
> The Apache resource is dependent of ip_adress
Assuming you are running RHEL 5.3 beta or RHEL5.2 (or using stable2
branch of linux-cluster):
<rm>
<service name="apache" depend="service:ip_address">
<script name="my_apache_script" ... />
</service>
<service name="ip_address" >
<ip adress="my_ip_address"/>
</service>
</rm>
[NOTE: that because rgmanager is an 'event-action' (not 'dependency
modeling') between services, disabling ip_address will cause a
successive transition of apache, not a preceding transition.]
OR..........
<rm>
<service name="apache_service">
<script name="my_apache_script" ... />
<ip adress="my_ip_address"/>
</service>
</rm>
Start the service, then do:
'clusvcadm -Z apache_service'
... then do whatever you want, then ...
'clusvcadm -U apache_service'
[NOTE: 5.3 beta or STABLE2 branch ONLY!]
-- Lon
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