yes, use VSI ..you can install just the storage viewer plugin that will allow your vSphere admin to identify LUN to Datastore relationship  [URL]
Hi,  I am running a vSphere environment and while in VMAX, a specific LUN has the identifier: 01E, in vSphere, the datastore that uses that LUN has another name (eg. storage_vamx_app1). Now that the environment has grown, it is a mess to know what datastores are behind a specific VMAX LUN. Is there a way to know in VMAX the name of the datastore installed in a specific VMAX LUN? or the other way around, is there a way to know in vSphere the LUN id. where the datastores is installed?  Thanks.
Mapping LUNs to vSphere datastores