Technical data

Virtual Partitions (vPars) Management on nPartitions
vPars Requirements and Recommendations
HP System Partitions Guide: Administration for nPartitions, rev 5.1 456
Adding or removing hardware from an nPartition changes the local
set of hardware that is available to vPars in the nPartition. Likewise,
making nPartition hardware inactive makes it unavailable to vPars.
❏ At least one processor must be bound to each vPar.
Only bound processors can handle I/O interrupts. Other processors
in the vPar can be either bound or unbound.
❏ A multiple of 64 MBytes of memory must be assigned to each vPar.
When you specify the memory size of each vPar, the commands
involved automatically round the memory assignment upward as
required to a 64-MByte boundary.
Memory in HP nPartitions is interleaved across all active cells in the
local nPartition. As a result the memory used by each vPar may
physically reside on all active cells in the nPartition where the vPars
exist.
❏ Each vPar must have at least one I/O bus (LBA) assigned to it.
On HP nPartition servers, each LBA corresponds to a PCI card slot
in an I/O chassis attached to an active cell in the local nPartition.
For I/O slot details, see the section Planning vPar Configurations
for HP nPartition Servers on page 467.
❏ Each vPar must have at least one bootable disk accessible through a
PCI card in one of the I/O busses assigned to the vPar.
The bootable disk must have both HP-UX 11i and the HP Virtual
Partitions software package installed.
❏ The HP processor pay per use (PPU, or iCOD Utility) product is not
yet supported for vPars and must not be installed or configured for
nPartition systems running vPars.
The HP processor Instant Capacity on Demand (iCOD Purchase)
release B.05.00 software may be installed and used with vPars on HP
Superdome servers.
A future release of iCOD Utility (pay per use) also will support
processor capacity on demand for nPartition servers running vPars.
❏ Each vPar should have at least one LAN card or port available
through one of the I/O busses assigned to the vPar.
The LAN port is required if HP-UX networking is to be supported.