Yes, it is possible to reclaim .
fyi..
for 6.5
http://anthonyspiteri.net/quick-look-vsphere-6-5-storage-space-reclamation/
for 5.x
How to reclaim VMFS deleted blocks on thin-provisioned LUNs (2014849) | VMware KB
Yes, it is possible to reclaim .
fyi..
for 6.5
http://anthonyspiteri.net/quick-look-vsphere-6-5-storage-space-reclamation/
for 5.x
How to reclaim VMFS deleted blocks on thin-provisioned LUNs (2014849) | VMware KB