HP-UX 11i Version 2 March 2004 Release Notes

General System Administration
HP Partitioning
Chapter 5
62
HP Partitioning
Partitioning provides the ability to subdivide system resources into isolated regions that
operate independently from each other (the equivalent of a box within a box). HP is the
only high-end UNIX offering to provide a broad range of solutions designed to meet the
diverse needs of our customers. Changes to these solutions are described in the following
sub-sections:
• “HP Process Resource Manager” on page 62
• “HP-UX Workload Manager” on page 63
• “nPartition Provider” on page 66
• “Partition Manager” on page 67
HP Process Resource Manager
HP Process Resource Manager (PRM) version C.02.02 provides an efficient and flexible
way to manage resource allocation at times of peak system load. It gives the system
administrator the ability to group users or processes together and guarantee each group
minimum amounts of the total CPU, real memory, and disk bandwidth available.
Summary of Change
PRM version C.02.02 includes the following:
• Many PRM commands now support a version option -V
• xprm now supports SSL encryption of login/password data and xprm operations
(encryption is disabled by default)
• prmmove and prmrun display data in a wide-column format by default when you do
not specify any options
• syslog messaging is more consistent
• prmconfig -k behavior has been modified (For information on what groups processes
are moved to, see the prmconfig (1) manpage.)
• The disk bandwidth manager is now disabled when not needed by the configuration
• prmmonitor updates its output as expected, even when running in continuous mode
as a nonroot user and a new configuration is loaded
Impact
If you desire SSL encryption, you should read the xprm (1) manpage for information.
Compatibility
There are no known compatibility issues.
Performance
PRM is designed to set resource allocations (CPU, memory, disk bandwidth) for
applications. Misconfiguration can result in degradation.