HP P9000 Tiered Storage Manager Software 7.4.1-00 CLI Reference Guide (TB585-96029, April 2013)

THP volume A virtual volume that is created from a THP pool or is related to a THP pool.
virtual volume A generic term for virtual volumes used in storage functions. In this manual, a
virtual volume indicates the following two types:
- A Snapshot V-VOL or a Fast Snap V-VOL
- A THP volume
zero data discard Action of discarding and releasing zero data (unused capacity that is not being
accessed from hosts) in a migration-target THP volume after migration to a THP
volume or THP pool is completed, reducing the amount of THP pool area in use.
Zero data discard is the same as zero page reclaim in Device Manager.
CLI Reference Guide 197