Dell EMC Solutions Enabler 9.2 SRDF Family CLI User Guide

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Setting up cascaded SRDF with EDP

Setting up a SRDF/EDP relationship is a two-step process:

Create the DLR1 --> R2 pair between array B and array C.
Create the R1 --> DLR2 pair between array A and array B.

After these two steps, the configuration is R1 --> DLR21 --> R2.

The following table lists the SRDF modes allowed for SRDF/EDP.

Table 1. SRDF modes allowed for SRDF/EDP
R1 - DLR21	DLR21 - R2
Synchronous	Asynchronous
Adaptive copy disk¹	Asynchronous