HP 3PAR Geocluster Software - Manual (Page 22)

3PAR GeoCluster 1.0.0.14 for Windows User’s Guide
320-200263 Page 22
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By default, after a general reboot, a cluster will start the Services and applications group on
node 1. The possible owners list allows you to set the cluster for different behaviors.

In a geographically dispersed cluster design, it is strongly advised to have at least two nodes
installed on each site, for a total of four nodes. A two-node design, with one node at each
site, will cause inter-site failover in any failover scenario, from which it is considerably more
constraining to recover.

At any given time during the cluster creation process, the Validate a Configuration Wizard
feature of MSCS can be used to ensure the cluster is functional. It performs a check of basic
cluster functions and can be accessed in the right-click menu of the cluster > Validate this
Cluster. If the Validate a Configuration Wizard test fails, refer to the MSCS help resource to
determine the cause of the dysfunction.
3.4.2 Resource Configuration
While not compulsory, the dependencies configuration described below is strongly advised.
Dependencies can be set in the Dependencies tab of each resource. There, the user can indicate on
which other resource(s) this particular resource will depend. Other configurations for the
dependencies may cause dysfunctions of the failover process :
1 The 3PAR GeoCluster for Windows resource should be at the top of the dependencies
hierarchy. There is no change to perform in its properties.
2 Set the properties of the disk resources corresponding to the Remote Copy group’s VVs
to have a dependency toward the 3PAR GeoCluster for Windows resource.