Validations Made by the Data Replication Subsystem

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.