Over weekend I wanted to review some of the features and functionalities that VASA and VSI provides inside vCenter server for a VNX array(5300). VASA configuration should be straight forward but ran into some strange issues which took some extensive troubleshooting:
Troubleshooting:
VMware compatibility guide for EMC VASA provider specifies that VASA support is part of VNX Block OE 05.32; no additional software is required. Our VNX 5300 has FLARE 5.32 which should allow for straight connectivity to the VNX...
http://www.vmware.com/resources/compatibility/detail.php?deviceCategory=vasa&productid=20232
On vCenter server web client select your vCenter server in inventory list on left. Select Manage tab in right pane -> Storage provider sub-tab. Click the green button.