HP Superdome 2 Partitioning Administrator Guide (5900-2064, November 2011)

SLM can be specified as a blade resource attribute when creating nPartitions. The remaining
available memory after specifying SLM is specified automatically as Interleaved Memory (ILM).
For more information, see “Blade resource attributes” (page 21).
Blade resource attributes
With HP Superdome 2 nPartitions, blade attributes are specified using the parcreate and
parmodify commands.
The blade resource attributes are:
• blade_path
Specifies the blade resource path. It can be specified in short, medium, or long format. For
example, the blade located in enclosure 1, slot 3 is identified in the short format as 1/3, in
the medium format as blade:1/3, or in the long format as enclosure1/blade3.
• blade_type
Specifies the type of the blade. At initial release, the only valid blade_type value for blades
is base.
• use_on_next_boot
Specifies whether the blade participates in the next reboot. The valid values for
use_on_next_boot are:
Participates in reboot. This is the default value.y
Does not participate in reboot.n
• failure_usage
This field is used by the system firmware when an nPartition is booted. If a CPU self-test failure
or a DIMM de-allocation failure occurs during blade activation, this flag is used by the system
firmware to determine whether or not, and the manner in which the blade must be integrated
into the nPartition at boot time. The valid failure_usage values for blades are:
Reactivates with memory interleave. Specifies to integrate the blade as it
would normally be integrated. This is the default value.
ri
Reactivates the nPartition with the blade excluded from activation.deconfig
• slm_value
Specifies the amount of memory that will be configured as SLM for the blade. An slm_value
specified using the -a or -c option takes precedence over the slm_value specified using
the -L option. The slm_value specified by the -L option is applied to all the blades for
which an slm_value is not specified with the -a or -c options. If slm_value is not specified,
the operating system specific default is applied. The size of SLM allocated is the best attempt
to meet the user requested value. In addition, some amount of ILM might be allocated even
when 100% SLM is requested. The slm_value can be expressed in the following forms:
◦ As a percentage
The percent number can be any number in the range 0 to 100 with the % suffix. The
number is rounded up to 12.5%, 25%, 37.5%, 50%, 62.5%, 75%, 87%, or 100%. If
the blade contains less than 4 GB memory, the percentage will be rounded to 25%, 50%,
75% or 100%. The specified percentage is applied each time the nPartition boots, thus
resulting in a different value if the working memory in the blade is different. For example,
a blade in an nPartition has 8 GB memory and the user specifies 50% SLM. When the
nPartition boots, 4 GB of that blade’s memory will be used as SLM. Consider that the
Blade resource attributes 21