Just sharing this info -
Objective : Moving CIFS shares from EOL Shelf to Supported Shelf with-in the same 7-mode Controller. First setup & initialize SnapMiror between source volume to destination volume on supported Disk Shelf Aggregate.
This order worked well for CIFS migration:
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cifs terminate on system* = T
mirror update = U
Quiesce mirror = Q
Break mirror = B
Offline source = O
Rename Source (_old ) = Rs
Rename dest (orginal) = Rd
Cifs start = S
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All the shares & Permissions worked as it was before.
*=If you want 'shares' to point to original path after volume rename, then you must shutdown(terminate) the CIFS at system (controller) level and not volume level.