Replication Manger is only necessary to replicate iSCSI volumes.  If you've deployed your ESX data stores on NFS shares, then the NFS shares can be replicated without RM in the equation.  Going this path is the easier, solution.  It is also supported by VMware, and includes support for SRM.
Hi all,  Our company has purchased 2 3100's along with vsphere5 in order for us to replicate vmfs data to an offsite DR location (just in case). Now when we've been talking to the sales guys etc and even on the product page the 3100 is says it comes with remote replication. I seem to be finding out that it can only replicate cif's/nfs natively between 31000s, otherwise you have to use the replication manager to replicate vmfs volumes.   Firstly is this correct and secondly could I download the replication manager from the 3100's download website (under the support options) and install it in the vcenter vm. Seeing as this is aimed at SMB's its safe to assume I dont have a windows licence use for replicating traffic that is suggested in the sales material to be a part of the 3100's internal capability.  My plan is to locate a esxi5 host and a san offsite and just have the san replicating traffic to the offsite san, In the event of a smoking hole inncidient at HQ then just switch over to the DR site and register the vm's on the third host (essentials plus).  Do I have to use replication manager for iscsi and vmfs volumes?   Regards  Dale 
VNXE 3100 vmfs replication