if there is fabric connectivity between the sites, nothing is stopping you from doing that, zone the servers and you should be fine. Of course performance will depend on latency between the two sites.

Ok but i have few Q's;

- is it possible to mask a device from a remote array ?

- the devices are in ASYNC mode, then i need to pause the replica first and try to access the device or to type a script to pause all replication first?

- If i have two clariions then this should be the same case ?

Thanks

VSANs merged between site A and site B or you are using IVR with transit VSAN ?

yes , dedicated ports for the SRDF for the SYM case.. 

Yes , Both MDS are connected via FCIP , SRDF is used for SYMs and RP for CXs.

ok, so do you have dedicated VSAN for your SRDF ports or they are in the same VSAN as your hosts ?

How are the two arrays connected ? FCIP / DWDM ?

no IVR were used..

dedicated ports in dedicated "replication" VSAN ? Is this the VSAN that is trunked over FCIP link ? The reason i am asking is if you have dedicated VSAN for replication and dedicated VSAN for host connectivity, you will need to verify that your IVR topoligy includes the VSAN with hosts and storage in it.

yes its the one trunked over thr FCIP, IVR .. can you explain it in breif, AFAIK its a routing over VSANs ? i dont think its enabled in my case,,