Composite Group and Multi-frame RDF consistency

What code level are you running on your boxes ??

My first answer is "No best way IMHO.. you need to put devices in new groups" .. however recent codes introduced interesting new features that may help you.

73 Code

I never tested this feature .. however it looks like code 73 offers a brand (and shining) new feature allowing you to move device pairs between different RDFG without requiring a full establish. I'll dig a little and give you more details tomorrow...

From the same document ..

* Moving RDF pairs between RDF groups is not supported for static RDF device pairs.
* Prior to moving the dynamic RDF pairs to a new group, the new RDF group being moved to must already exist.
* When moving a dynamic RDF device pair between RDF groups, the devices cannot be operating in SRDF/A mode.
* Dynamic RDF device pairs being moved between RDF groups must be suspended prior to being moved.

Hermie it looks like you are a lucky boy (coz you are running 73 code)

Straight from "SRDF Enhancements" in "Feature Specifications"

Home > Support > Technical Documentation and Advisories > Hardware/Platforms Documentation > Symmetrix DMX Family > Symmetrix DMX-4 > Feature/Application Benefit Sheets

Moving dynamic RDF device pairs

Prior to Enginuity version 5773, moving a dynamic RDF device pair from one RDF group to another required the deletion of the existing pair followed by the creation of the same pair in the new RDF group.
While successful in moving the device pair, this process resulted in a full resynchronization of the data. Enginuity version 5773 allows this move to occur without the deletion of the existing dynamic RDF pair, thus avoiding a full resynchronization.
Moving dynamic RDF devices between two RDF groups can be performed using the Solutions Enabler syntax:

symrdf  g  movepair  new_rdfg <new GrpNum>

or

symrdf  f  -rdfg  movepair  new_rdfg <new GrpNum>