Dell EMC Solutions Enabler 9.2 SRDF Family CLI User Guide

Before you perform this procedure, review Enabling SRDF consistency protection for concurrent SRDF devices.

The following table lists the allowable device types for a dynamic modify add operation on a concurrent RDF1 composite group enabled for consistency protection at the composite group level and the SRDF group name level.

The following table lists the allowable consistency modes for the SRDF groups of a concurrent CG.

Examples

In this example, device 20 is added to two independently-enabled SRDF groups of a CG.

The following image shows the staging area shared by array 306, 311, and 402 in a concurrent SRDF configuration:

The staging area contains devices 20 and 21.

SRDF groups 70 and 71 of ConCG operate in different SRDF modes. They were enabled independently for consistency protection using the following SRDF group names:

Boston: device pairs operate in SRDF/S mode and are set for RDF-ECA consistency protection.

To add only device 20 from the staging area into SRDF groups 70 and 71 of ConCG:

symcg -cg ConCG modify -add -sid 306 -stg_rdfg 80,81 -devs 20 -cg_rdfg 70,71 

To check if the devices were added to ConCG:

symrdf -cg ConCG query -detail