HP-UX 11i March 2002 Release Notes

HP-UX 11i Operating Environment Applications

HP-UX 11i Enterprise Operating Environment

Chapter 4 83

• support for processor sets

— HP PRM introduces a new type of PRM group, called a PSET PRM group, that is

based on processor sets. The PSET PRM’s CPU entitlement is speciﬁed by

assigning it to a subset of the system’s processors.

• prmanalyze updated to perform new functionality

• new PRM toolset for SCM

NOTE Processor Sets can be installed from the December 2001 Software Pack (Optional HP-UX

11i Core Enhancements) CD included in your HP-UX 11i December 2001 media kit. You

can also download Processor Sets (or order a CD from the web) from the HP Software

Depot at the following web site:

http://software.hp.com

new at 11i

original release

With version C.01.08.02, PRM provides the following features:

• Distribution of resources through shares, hierarchical PRM groups, in-kernel

memory management, a Simple Network Management Protocol (SNMP) agent,

remote management of PRM, and an improved GUI.

• Provides a shares model of distributing resources instead of static percentages. This

model facilitates conﬁguration changes. PRM groups can be nested, allowing for more

convenient partitioning.

• Memory controlled in the kernel, through the prm2d daemon, rather than in user

space, through the prm0d daemon.

• Syntax for memory records is essentially the same, with the only difference being

that the optional SUPPRESS ﬁeld is no longer needed and is ignored if present:

#!PRM_MEM:{PRMID|GROUP}:SHARES:[CAP]:::

• CAP value is treated as a hard limit to the group’s memory usage. Previously, it was a

soft limit that could be crossed.

• prm2d in-kernel memory manager is the default for HP-UX 11i. If you prefer to use

the previous manager (prm0d), follow the steps below:

1. As root, go to the PRM install directory:

# cd /opt/prm/bin/

2. Make a backup of prm2d:

# mv prm2d prm2d.original

3. Create a symbolic link from prm2d to prm0d:

# ln -s prm0d prm2d

• Provides an enhanced GUI, which enables PRM to be remotely managed from any

system that has Java Runtime Environment 1.2.2 (or later). PRM has a SNMP agent

that makes conﬁguration and resource information available.