IBM International Business Machines Corporation
ID Identifier
IEC International Electrotechnical Commission
IEEE Institute of Electrical and Electronics Engineers
IETF Internet Engineering Task Force
Imex Import/Export
import An operation in which a cartridge and its associated storage space are made 
available to the HPSS system.  An import requires that the cartridge has been 
physically introduced  into a Physical Volume Repository (injected).  Importing 
the cartridge makes it known to the Physical Volume Library.
I/O Input/Output
IOD/IOR Input/Output Descriptor / Input/Output Reply.  Structures used to send control 
information about data movement requests in HPSS and about the success or 
failure of the requests.
IP Internet Protocol
IRIX SGI’s implementation of UNIX
junction A mount point for an HPSS fileset. 
KB Kilobyte (210)
KDC Key Distribution Center
LAN Local Area Network
LANL Los Alamos National Laboratory
LARC Langley Research Center
latency For tape media, the average time in seconds between the start of a read or write 
request and the time when the drive actually begins reading or writing the tape.
LCU Library Control Unit
LDAP Lightweight Directory Access Protocol
LLNL Lawrence Livermore National Laboratory
LMCP Library Manager Control Point
LMU Library Management Unit
HPSS Management Guide November 2009
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