Dell EMC Solutions Enabler 9.2 SRDF Family CLI User Guide

The format option (-format) clears all tracks on the R1 and R2 sides to ensure no data exists on either side, and makes the R1 read write to the host. When you use this option to create dynamic pairs, an application cannot write to these devices until the device-format operations completes.

Restrictions

The symrdf createpair -format option has the following restrictions:

• Not supported in concurrent SRDF configurations
• SRDF device pairs cannot be created in an SRDF Witness group
• The R1 and R2 cannot be mapped to a host

Example

In this example, the createpair -format command:

• Creates device pairs using device pairs listed in a device file devicefile.
• Ignores the check to see if the host can write to its targets (-nowd).
• Sets the mode for the device pairs to synchronous (-rdf_mode sync).
• Clears tracks on the R1 and R2 sides to ensure no data exists on either side, and makes the R1 read write to the host (-format).

symrdf createpair -sid 66 -format -file devicefile -type r1 -rdfg 117 -rdf_mode sync -nop