HP Superdome 2 Partitioning Administrator Guide HP-UX 11i v3 (766170-001, May 2014)

NOTE:
• On SD2, for an nPar in npar mode, nPars are created with a default ILM/SLM distribution of
1:7 when no value is specified for SLM. For an nPar created in vpar mode, the default value
of SLM will be 0% and ILM will be 100%. For more information, see “Modes: Switching
between nPars and vPars Modes ”.
• If the SLM (socket local memory) for a blade is provided in absolute value (GB) during nPartition
creation and/or modification, then the “Total SLM” field in parstatus output (parstatus –c
<blade_path> –V) and “SLM at Next Boot” field in parstatus output (parstatus –Z
<parspec_name>) displays --.-% instead of the percentage of SLM memory configured. The
values are properly configured internally. To view the final SLM values configured at the
nPartition level, run parstatus –p <partition> -V command.
Operating system specific default values for nPartition attributes
When an nPartition is created for a specific operating system type, the default values specific to
that operating system type are applied to the nPartition attributes. By default, hyperthreading is
enabled when nPartitions are created to run HP-UX. The default attribute values are applied without
a need for user intervention. The partition management software applies pre-determined OS specific
defaults when you create a partition for a specific operating system type. However, there is also
support for a new pardefault command, which displays the operating system specific attribute
values and allows users to change them if needed:
pardefault
[Original Defaults]
Parcon Default OS Type : HPUX_11iV3
OS Type : HPUX_11iV3
Hyper Threading at activation : Enabled
SLM Percentage : 87.50%
ILM granule size : 1024 MB
SLM granule size : 1024 MB
VGA : Enabled
[Current Defaults]
Parcon Default OS Type : HPUX_11iV3
OS Type : HPUX_11iV3
Hyper Threading at activation : Disabled
SLM Percentage : 50.00%
ILM granule size : 2048 MB
SLM granule size : 8192 MB
VGA : Disabled
Partition State and RunStates
Each nPartition has a State, and a RunState. The nPartition state indicates whether the nPartition
has booted and represents the power state of nPartition.
The nPartition runstate indicates the state of the nPartition with respect to OS instances. For more
information on RunState, see “RunStates” (page 27).
The nPartitions have one of the following states:
• Active nPartition
• Inactive nPartition
• Unknown
Operating system specific default values for nPartition attributes 25