HP-UX Virtual Partitions Administrator's Guide (includes A.05.02)

CPU, Memory, and I/O Resources (A.04.xx)
Memory: Setting the Granularity Values (PA-RISC)
Chapter 7
256
Memory: Setting the Granularity Values (PA-RISC)
Syntax
The syntax for setting granularity unit size is:
-g ILM|CLM: unit [:y|n]
where:
g is granularity
ILM|CLM specifies whether the unit size is applied to ILM or CLM
unit is the granularity unit size in MBs
This value must be an integral power of 2 (in other words, 2^X) and be greater than or
equal to 64.
y|n specifies whether the granularity unit size should be written to firmware. The default is
n. Ignored on PA-RISC.
The default granularity is 128 MB for ILM and 128 MB for CLM.
Commands
There is only one command that can set the granularity values: the vparcreate command with the -g
option:
1. vparcreate -g ...
vparcreate writes the granularity values to the vPars database; the update firmware option ([:y]) is
extraneous and is ignored on PA-RISC.
vparcreate
# vparcreate -p vpar1_name [-g ILM: unit ] [-g CLM: unit ]
writes the unit granularity value to the vPars database when the first virtual partition for a given vPars
database is created.
When using this method, note that the -g option must be performed when creating the vPars database (in
other words, when performing the initial vparcreate command). If you set the value incorrectly using the
initial vparcreate command, you cannot adjust it later. You must re-create the vPars database.
Usage Scenario
In standalone mode, you create your first virtual partition with a 256 MB granularity value for both ILM and
CLM. The command is:
# vparcreate -g ILM:256 -g CLM:256 -p keira1 ...
This writes the granularity values to the vPars database.
Note that with the vparcreate command, when you specify the granularity value for only one type of memory
(ILM or CLM), the granularity value for the other type of memory is set using the default granularity value.
For example, if you specify only -g ILM:256, the -g CLM:128 is implied where 128 is the vPars default
granularity value.