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Dell EMC Solutions Enabler 9.2 SRDF Family CLI User Guide

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Prepare the staging area to remove devices

The dynamic modify remove operation moves the device pairs from the consistency group into the SRDF groups in the staging areas.

To prepare the staging area for this operation, create the SRDF groups for receiving the device pairs removed from a consistency group.

NOTE:

The dynamic modify remove operation must never leave an SRDF group empty.

The following image shows empty group RDFG 34 configured to receive devices removed from RDFG 32:

Figure 1. Preparing the staging area for removing devices from the MyR1 CG

The staging area consists of RDFG 34, an R1->R2 configuration established between the same array as RDFG 32 in the MyR1 consistency group.

The following image shows the MyR1 consistency group and its staging area after the dynamic modify remove operation has completed.

Figure 2. MyR1 CG after a dynamic modify remove operation

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