A system and method for reclaims unused space from a thinly provision data container served by a storage system. A host-side agent detects blocks of the data container that may be freed and sends a novel Punch Hole command to the storage system associated with the data container. The storage system allocates...http://www.google.de/patents/US20060085471?utm_source=gb-gplus-sharePatent US20060085471 - System and method for reclaiming unused space from a thinly provisioned data container
