To execute following commands, Pegasus CIM server has to be running 
and root account has to be used,

Register Red Hat Cluster provider:
cimmof -n root/PG_InterOp RedHat_ClusterProvider.mof

Install Red Hat Cluster schema:
cimmof -n root/cimv2 RedHat_ClusterSchema.mof


Refer to Pegasus documentation and /usr/share/doc/tog-pegasus for CIM 
user management and ACL.