User's Manual

prmrun Runs an application in its assigned group or in a specified group.
prmsmhconfig Configure or unconfigure the PRM GUI to be available in HP System
Management Homepage (SMH).
prm2scomp Generates a minimal Security Containment configuration based on a PRM
configuration. (The Security Containment configuration defines secure
compartments. You can also create compartment configurations using the
PRM utility srpgen.)
Available starting with HP-UX 11i v2 (B.11.23).
scomp2prm Generates a minimal PRM configuration based on a Security Containment
configuration. (The Security Containment configuration defines secure
compartments.You can also create compartment configurations using a PRM
utility such as srpgen or prm2scomp.)
Available starting with HP-UX 11i v2 (B.11.23).
srpgen Generates Secure Resource Partitions by creating both a minimal Security
Containment configuration and a minimal PRM configuration based on your
input.
Available starting with HP-UX 11i v2 (B.11.23).
Why use HP Process Resource Manager?
The standard HP-UX CPU scheduler and memory manager allocate resources to processes based
on the assumption that all processes are of equal importance. PRM, however, allows the system
administrator to group processes and specify the level of importance for that group. PRM allocates
CPU resources, real memory resources (private and shared) to the group based on its assigned
importance.
Reasons to use PRM:
• Improve the response time for critical users and applications.
• Set and manage user expectations for performance.
• Allocate shared servers based on budgeting.
• Ensure that an application package in a Serviceguard cluster has sufficient resources on an
active standby system in the event of a failover.
• Ensure that critical users or applications have sufficient CPU and memory resources.
Users who at times run critical applications, may at other times engage in relatively trivial
tasks. These trivial tasks may be competing in the users’ PRM group with critical applications
for available CPU and real memory resources. For this reason, it is often useful to separate
applications into different PRM groups or create alternate groups for a user. You can assign
a critical application its own PRM group to ensure that the application gets the needed share
of resources.
• Restrict the CPU and real memory resources available to relatively low-priority users and
applications during times of heavy demand.
• Monitor resource consumption by users or applications.
Assigning a group of users or applications to separate PRM groups can be a good way to
keep track of the resources they are using. For information on various PRM reports, see
“Monitoring PRM groups ” (page 93).
Table 1 lists the resources that PRM can manage. For more information about how a resource is
managed, see “Understanding how PRM manages resources ” (page 17).
Why use HP Process Resource Manager? 13