HP-UX Virtual Partitions Administrator's Guide (includes A.03.05 and A.04.05)

Glossary
All vPars Versions
core The actual data-processing engine within a processor. A single processor might have multiple
cores. Sometimes referred to as a “processing core”. See also processor.
dynamic CPU
migration
The vPars ability to add or remove CPUs (cores) while a virtual partition is running.
hard partition Any isolated hardware environment, such as a rp7400 server or an nPartition within a Superdome
complex.
nPartition A logical partition of a complex that divides the complex into groups of cell boards where each
group operates independently of other groups. an nPartition can run a single instance of HP-UX
or be further divided into virtual partitions.
processor The hardware component that plugs into a processor socket. Processors can contain more than
one core. See also core.
virtual consoles A vPars feature that allows console I/O to be multiplexed to one hardware console port.
virtual partition Software partition of a hard partition where each virtual partition contains an instance of HP-UX.
Though a hard partition can contain multiple virtual partitions, the inverse is not true. A virtual
partition cannot span a hard partition boundary
vPars HP software product that allows software partitioning.
vPars Monitor The program that manages resources using the virtual partition database, boots virtual partitions
and their kernels, and emulates certain firmware calls.
vPars Partition
Database
The database that contains the configuration for all the virtual partitions.
vPars A.03.xx-specific Terms
bound CPU A CPU (core) that cannot be migrated from or to virtual partitions while the involved virtual
partitions are running. Bound CPUs can handle I/O interrupts.
unbound CPU A CPU (core) that can be migrated from and to virtual partitions while the involved virtual
partitions are running. Unbound CPUs cannot handle I/O interrupts. Unbound CPUs are also
referred to as floater CPUs.
vparmgr Virtual Partition Manager. This program provides a GUI to the vPars commands
vPars A.04.xx-specific Terms
CLM (Cell Local
Memory)
Using nPartition commands, you can re-configure a portion of a cell’s ILM memory to be used
instead as CLM.
CLP (Cell Local
Processor)
A CPU (core) on a specific cell in an nPartition. Using CLP notation to add or delete CPUs from
a virtual partition specifies the cell where the CPU resides.
ILM (Interleaved
Memory)
The nPartition’s system default is to have all memory configured as ILM.
vPars A.05.xx-specific Terms
base memory This is memory that can be only added to virtual partitions while the virtual partition is up.
This memory cannot be deleted from a virtual partition while it is up.
CLM (Cell Local
Memory)
Using nPartition commands, you can re-configure a portion of a cell’s ILM memory to be used
instead as CLM.
CLP (Cell Local
Processor)
A CPU (core) on a specific cell in an nPartition. Using CLP notation to add or delete CPUs from
a virtual partition specifies the cell where the CPU resides.
dynamic memory
migration
The vPars ability to add or remove memory while a virtual partition is running.
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