HP-UX Virtual Partitions Administrator Guide (includes A.05.09) (5900-2188, March 2012)

where the I/O assignment is specified using the LBA level (-a io:0.0.0.) and the boot disk is
specified using the full hardware path (-a io:0.0.0.2.0.6.0).
For information on using the LBA level on nPartitionable systems, also see “Planning, Installing,
and Using vPars with an nPartitionable Server” (page 46).
• SBA/LBA versus cell/SBA/LBA
When viewing hardware paths, note the following:
1. The explicit specification of an LBA on a non-nPartitionable system consists of two fields:
sba/lba
2. The explicit specification of an LBA on an nPartitionable system consists of three fields:
cell/sba/lba
3. With A.04.xx, all LBAs under a SBA are implied when explicitly specifying a SBA without
specifying any LBA. Therefore, the path specified on a command line can have different
meanings depending upon the vPars version, the type of server, and the user intent. For
example, the path of x/y can mean any of the following:
◦ sba=x, lba=y on a non-nPartitionable server running vPars A.03.01 or earlier
◦ sba=x, lba=y on a non-nPartitionable server running vPars A.03.02 or later or
A.04.xx
◦ cell=x, sba=y on an nPartitionable server running vPars A.03.02 or later or A.04.xx
• Supported I/O
Check your hardware manual to verify that your mass storage unit can be used as a bootable
device. If a mass storage unit cannot be used as a boot disk on a non-vPars server, it cannot
be used as a boot disk on a vPars server. vPars does not add any additional capability to the
hardware.
For information on supported I/O interface cards and configurations, see the document HP-UX
Virtual Partitions Ordering and Configuration Guide.
Memory: Concepts and Functionality
Acronyms
ILM Interleaved Memory.
• The nPartition’s system default is to have all memory configured as ILM.
• vPars A.03.xx and A.02.xx use and assign only ILM; vPars A.04.xx allows use of ILM
and CLM.
CLM Cell Local Memory.
• Using nPartition commands, you can re-configure a portion of a cell’s memory as CLM.
Beginning with vPars A.04.01, you can assign an amount of available CLM to a virtual
partition.
• This capability should be used only if you are an advanced administrator. Further, CLM
is meant to be used in conjunction with CLP (cell local processor); not doing so may
actually cause performance degradation.
Memory: Concepts and Functionality 203