T10 UNMAP in VMware vSphere and 3PAR

What is T10 UNMAP? UNMAP is a SCSI command used to reclaim space from blocks that have been deleted by a virtual machine (OS or application). In vSphere 5, UNMAP is used for space reclamation of deleted data after common operations This is particularly beneficial and important in thinly provisioned environments as it allows the storage array to […]