Installation guide

The following resource types will be defined to provide the high availability functionality for
SAP.
7.2 Configuration
The resource group manager is configured within the cluster configuration file
/etc/cluster/cluster.conf. The configuration is encapsulated within the <rm> tag. The resource
manager configuration has the following basic layout:
<rm>
<failoverdomains>
<failoverdomain/>
...
<failoverdomain/>
</failoverdomains>
<resources>
<resource/>
...
<resource/>
</resources>
<service/>
...
<service>
<events>
<event/>
[...]
<events
</rm>
The following <rm> attributes can be defined:
Attribute Description
log_level The log level is number from 0..7, where 7 is
'debug' and 0 is 'emergency only'. The default value
is 4.
log_facility Log facility name, such as daemon, local4, or
similar. The default value is daemon.
central_processing The central_processing option is used to activate
the event mechanism. Central_processing is
needed to enable the hard and soft service
dependencies and the follow_service dependency.
7.3 Failover Domains
The cluster can be divided into logical subsets of cluster nodes. A failover domain is an
ordered subset of members to which a service can be bound.
Failover domains are configured in the cluster configuration file. The following outlines the
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