I know there are multiple old posts around the issue of "moving" a filesystem to get more performance, and I'd like to know if in the newer DART is it supported to use the LUN migrator on the backend to move from say R5 to R10 RGs without having to use replicator and thus avoid any host downtime?

I know there are solutions out there from Gustavo and others which all require host outage of some sort, and we have a FS which is multiprotocol, very active, and 24x7, so unmounting and remounting is not really an option. Does the Celerra choke if you migrate LUNs on the backend even with newer code rev's?

Also, the DART is 7.0.40-1 and the reasoning is simple - large FS, only FS on the pool, and production systems 24x7. So, wouldn't the Celerra be smart enough to know (or have the code enhanced to allow it) that "all" LUNs composing of the pool would be migrated to other RGs and possibly RAID type so that at the end the pool would "re-identify" itself as a new "clarxxx_r# " pool?

thanks