Dell EMC Solutions Enabler 9.2 SRDF Family CLI User Guide

Dynamic operations overview

An SRDF group consists of SRDF devices and SRDF directors on a storage array. The SRDF mirrors that belong to these SRDF devices point to the SRDF partner devices on another array and are configured to the partner SRDF group.

SRDF groups communicate with their partner SRDF groups in another array across the SRDF links. SRDF group configuration parameters include the partner array identification and the set of SRDF directors that belong to the partner SRDF group.

Create SRDF groups on both ends of the SRDF links.

SRDF groups can be created, modified, and deleted on demand while the array is in operation.

As soon as an empty SRDF group is created on one array, create a partner SRDF group on the second array. The SRDF directors assigned to each group share CPU processing power, SRDF ports, and serve all SRDF devices in the SRDF group associated with that director. SRDF directors on each side of the SRDF links cooperate to support regular SRDF I/O operations.