request A log record message type used to log some action being performed by an HPSS 
server on behalf of a client.
RISC Reduced Instruction Set Computer/Cycles
RMS Removable Media Service
RPC Remote Procedure Call
SCSI Small Computer Systems Interface
security A log record message type used to log security related events (e.g., authorization 
failures).
SGI Silicon Graphics
shelf tape A cartridge which has been physically removed from a tape library but whose file 
metadata still resides in HPSS.
shutdown An HPSS SSM administrative operation that causes a server to stop its execution 
gracefully.
sink The set of destinations to which data is sent during a data transfer (e.g., disk 
devices, memory buffers, network addresses).
SMC SCSI Medium Changer
SMIT System Management Interface Tool
SNL Sandia National Laboratories
SOID Storage Object ID. An internal HPSS storage object identifier that uniquely 
identifies a storage resource.  The SOID contains an unique identifier for the 
object, and an unique identifier for the server that manages the object.
source The set of origins from which data is received during a data transfer (e.g., disk 
devices, memory buffers, network addresses).
SP Scalable Processor
SS HPSS Storage Service
SSA Serial Storage Architecture
SSM Storage System Management
SSM session The environment in which an SSM user interacts with the SSM System Manager 
to monitor and control HPSS.  This environment may be the graphical user 
interface provided by the hpssgui program, or the command line user interface 
provided by the hpssadm program.
HPSS Management Guide November 2009
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