You can use SnapDrive for UNIX to carry out thin provisioning on your storage system. Thin provisioning is also referred as space-reservation.
Parameter override the value mentioned in the -space-reservations-enabled variable.
By default, SnapDrive for UNIX enables space reservation for a fresh or new storage create operations. For snap restore and snap connect operations, it uses the space reservation present in the Snapshot copy if the -reserve or -noreserve parameters are not specified at the command line, or if the value in the configuration file is uncommented.