LUN is not registered (no active paths)

Hi All,

I have a 2 node esxi 4.1 cluster and I just created 4 snapshots from my HP EVA and presented the snapshots to this cluster, one presented fine and the other 3 are giving me this error in the logs and I cannot see the LUNs:

WARNING: NMP: nmpPathClaimEnd: Device, seen through path vmhba4:C0:T1:L205 is not registered (no active paths)

Any help would be greatly appreciated.

Cheers, Val.