notification A notice from one server to another about a noteworthy occurrence. HPSS
notifications include notices sent from other servers to SSM of changes in
managed object attributes, changes in tape mount information, and log
messages that are alarm, event, and status log record message types.
NS HPSS Name Service
NSL National Storage Laboratory
object See Managed Object
ONC Open Network Computing
ORNL Oak Ridge National Laboratory
OSF Open Software Foundation
OS/2 Operating System (multi-tasking, single user) used on the AMU controller PC
PB Petabyte (250)
PFTP Parallel File Transfer Protocol
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
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