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physical volume
An HPSS object managed jointly by the Core Server and the Physical Volume
Library that represents the portion of a virtual volume. A virtual volume may be
composed of one or more physical volumes, but a physical volume may contain
data from no more than one virtual volume.
Physical Volume Library
An HPSS server that manages mounts and dismounts of HPSS physical volumes.
Physical Volume Repository
An HPSS server that manages the robotic agent responsible for mounting and
dismounting cartridges or interfaces with the human agent responsible for
mounting and dismounting cartridges.
PIO
Parallel I/O
PIOFS
Parallel I/O File System
POSIX
Portable Operating System Interface (for computer environments)
purge
Deletion of file data from a level in the file’s hierarchy after the data has been
duplicated at lower levels in the hierarchy and is no longer needed at the deletion
level.
purge lock
A lock applied to a bitfile which prohibits the bitfile from being purged.
PV
Physical Volume
PVL
Physical Volume Library
PVM
Physical Volume Manager
PVR
Physical Volume Repository
RAID
Redundant Array of Independent Disks
RAIT
Redundant Array of Independent Tapes
RAM
Random Access Memory
reclaim The act of making empty tape virtual volumes available for reuse. Reclaimed
tape virtual volumes are assigned a new Virtual Volume ID, but retain the rest of
their previous characteristics.
registration
The process by which SSM requests notification of changes to specified
attributes of a managed object.
reinitialization
An HPSS SSM administrative operation that directs an HPSS server to reread its
latest configuration information, and to change its operating parameters to match
that configuration, without going through a server shutdown and restart.
repack
The act of moving data from a virtual volume onto another virtual volume with
the same characteristics with the intention of removing all data from the source
virtual volume.
HPSS Management Guide November 2009
Release 7.3 (Revision 1.0) 380