How to Make the Original Primary Cluster Primary for an EMC Symmetrix Remote Data Facility Protection Group

1. Deactivate the protection group on the original primary cluster.

   phys-paris-1# geopg stop -e Local srdfpg

2. Resynchronize the configuration of the protection group.

   This command updates the configuration of the protection group on cluster-paris with the configuration information of the protection group on cluster-newyork.

   phys-paris-1# geopg update srdfpg

   After the geopg update command run successfully, srdfpg has the following role on each cluster:

   cluster-paris: srdfpg role: Primary cluster-newyork: srdfpg role: secondary

3. Run the symrdf swap command so that the device group, devgroup1, resumes the RDF1 role.

   phys-paris-1# symrdf -g devgroup1 failover phys-paris-1# symrdf -g devgroup1 swap

   Confirm that the swap was successful by using the symrdf list command to view the device group information.

   phys-paris-1# symdg list D E V I C E G R O U P S Number of Name Type Valid Symmetrix ID Devs GKs BCVs VDEVs devgroup1 RDF1 Yes 000187401215 6 0 0 0 devgroup2 RDF1 Yes 000187401215 2 0 0 0

4. Activate the protection group on both clusters in the partnership.

   phys-paris-1# geopg start -e Global srdfpg

   This command starts the application on cluster-paris. Data replication starts from cluster-paris to cluster-newyork.