NetApp's Snapdrive application provides a command line tool called sdcli that can be used to script a Snapdrive space reclamation process. The sdcli spacereclaimer command runs space reclamation on a specified LUN mount point or volume for a specified time period. Space reclamation optimizes LUN space usage by marking freed space as available to both the NTFS file system and Data ONTAP storage system. Running space reclamation regularly is recommended, such as by scheduling it as a weekly Windows task, in order to avoid disparities in available space reporting between the host and storage system.