what is the best/easiest way to mirror luns between 2 VNX5200 1/2-times per day. The distance between the devices is 500m, 10G ports and cabling are exist. Is any guide out there?
Your choices are MirrorView/A or SANcopy
The VNX replication Technologies should give you a good overview.
There are also white papers and Manuals for each
All available from support.emc.com