AIX - use internal mirroring, piece of cake for any AIX admin and system never goes down. Do make sure you have the latest ODM and PowerPath installed. ESX and Windows - use Open Replication. Windows will not care that storage change, ESX altought will, be prepared to export all VMs from the inventory , re-signature VMFS file systems and re-register all VMs.  Also make sure to set connect FA/host_hba flags on VMAX. Download Open Replicator manual and they have a lot of examples to walk you step by step through zoning requirements, hot pull vs cold pull ..etc
Planning to migrate from HP EVA6000, DS4800 to VMAX SE with brocade fabric, suggestions, experiences..best practices..and possible approaches..?
Migrating to V-Max