When the EMC Symmetrix Remote Data Facility device group is added to a protection group, the data replication layer makes the following validations.
The specified device group name exists in the EMC Symmetrix Remote Data Facility configuration.
The replication role matches the EMC Symmetrix Remote Data Facility protection group role.
The EMC Symmetrix source, R1SID, and the EMC Symmetrix target, R2SID, can be reached.
When an EMC Symmetrix Remote Data Facility device group is added to a protection group, a Sun Cluster data replication resource is automatically created by this command. This resource monitors data replication state. The name of the resource is sc_ggeo_dr-SRDFprotectiongroupname-devicegroupname. This resource is placed in the corresponding Sun Cluster resource group, which is named sc_geo_dr-SRDFprotectiongroupname.
You must use caution before you modify these replication resources with Sun Cluster commands. These resources are for internal implementation purposes only.