Many people get confused when it comes to multiple paths in VNXe. They compare it with VNX and think there should be two paths to LUN thru each SP.  This is wrong. Though the term SP (Storage Processor) is similar to that of VNX, functionally it is bit different in VNXe. That means when you create a iSCSI LUN it is assigned to iSCSI server created on either SPs (SPA or SPB). In VNXe iSCSI server is a service resource running on that SP (for example, SPA). When that SPA fails, this iSCSI server is moved to peer SP. Here iSCSI LUN ownership is tied to this iSCSI server. If iSCSI server is configured with one IP then only one path is available. If it is setup with two IP address, two paths will be available. However, this path is to where that iSCSI server is running (in our example SPA), not to both SPs.  Here is one illustration I would like to give. For example,iSCSI_server_00 is created on SPA with IP address 10.0.0.1 on eth2 port.  iSCSI_LUN_00 of 500GB size is created on this server.  Test case scenario 1:If the ethernet cable connecting to eth2 port of SPA is pulled (to test port or cable failure), there is something called Fail Safe Networking (FSN) comes into effect. Traffic to SPA eth2 port gets redirected internally through SPB eth2. But the iSCSI_Server_00 will still be running on SPA. Once the cable is reconnected (i.e. fault is repaired) traffic starts flowing through SPA eth2 again.  For this to successfully work, network should be setup properly. i.e. On the switch subnet, VLAN ID, connectivity should be similar to that of SPA eth2. Test Case Scenario 2:If the SPA itself fails, then all services running on SPA will be failed over to SPB. So, iSCSI_Server_00 will start running on SPB. This utilizes SPB's eth2 port for the IP 10.0.0.1. Again network configuration should be taken care. This same thing is true when SPB fails. For this reason, it is advised to setup SPA and SPB with similar network for their data ports.
Hello,  I have a VNXE3300 connected to 3 ESX hosts and vcenter.  I can ping the iSCSI1 and 2 ports from all of the switches to both the SAN and the ESX Hosts.  So when I tested my failover, it failed to reconnect to the SPA or SPB.  It almost appears as though the only path it created is the one from the SP that I create the LUN from.  However I believe I should have a path from both SP's.  When I created a lun from SPA it only created a single path to SPA in vmware.  When I created a lun from SPB, it only created the path for SPB in vmware.  Not sure what to do to get the second path to the opposite SP.
VNXE is only presenting a single data path to VMWare - How do I get second?