Dell PowerFlex 4.5.x Administration Guide

Create an RCG

Create a replication consistency group (RCG) and add it to the system. Replication occurs between volumes, and RCGs maintain consistency between volume pairs in an RCG.

1. On the menu bar, click Protection > RCGs.
2. Click Add RCG.
3. In the Add RCG wizard, enter the information for the RCG:
   1. On the Properties page:
      • Enter the RCG Name.
      • Enter the number of RPO (recovery point objective) seconds or minutes. This is the amount of time of data loss is tolerated if replication between the systems is compromised.
        NOTE:It is recommended to enter the minimum amount of time the feature allows, which is 15 seconds.
      • Select the Source Protection Domain.
      • Select the Target System.
      • Select the Target Protection Domain.
      • Click Next .
   2. On the Provisioning Type page:
      • If you have not defined volumes to receive replicated data in the target system, select Auto Provisioning.
      • If you have already defined volumes to receive replicated data in the target system, select Manual Provisioning.
   3. For auto provisioning only, on the Replication Pairs page, perform the following:
      • Click the desired volume in the Source column.
      • Select a type: Thick or Thin.
      • Select a storage pool from the target system.
      • Click Add Pair. The volume pair is added.
      • Click Next.
      • On the Map Volumes page, select a volume on the target side.
      • Select a host to which to map the volume.
      • Click Next, and go to step 3(e).
      • Click Next.
   4. For manual provisioning only, on the Replication Pairs page, perform the following:
      • Select the desired volume in the Source column, and then in the Target column, select the target volume (only volumes of the same size are displayed).
      • Click Add Pair. The volume pair is added.
      • Click Next.
   5. On the Summary page, ensure that the correct source and volume pair are defined, and then click Create and Activate or Create.
      The Create and Activate option creates the RCG and starts replication. The Create option creates the RCG but does not activate it. You can activate it later from Protection > RCGs > More Actions > Activate.
4. Optionally, at the top right of the window, click the Running Jobs icon, and check the progress of the initial copy state.
5. Verify that the operation has finished and was successful, and click Dismiss.