Have you looked at the document in the Documents section on this forum?  White Paper: EMC CLARiiON Virtual Provisioning—Applied Technology  glen
from navisphere seen a thin lun pool properties , user capacity is more than the total space defined,  problems,  1. i am unable to expand, how to expand a thin lun pool 2. i don´t have more disk to make a new thin pool 3. this thin lun is assigned as a datastore in vmware already provisioned, after restarting the esx server, the datastore is not showed     , and vms are inaccesible 4. is the used space user in the thinpool the problem,? 5. i have space to migrate this thin lun pool, can i migrate to large thin, thick, meta or single lun?  please any idea.  MC.
cx4 thin lun pool, as a vmware datastore, is full and not showed in VC