HP PRM manages resources by partitioning a system based on PRM groups. A PRM group is a collection of processes that is assigned system resources. The system administrator assigns applications and users to PRM groups and establishes resource allocations for each group. PRM then manages each group's CPU and memory resources according to the current configuration.HP PRM manages the allocation of the following resources:
PRM allocates system resources among a set of workloads (PRM groups). You can assign users, applications, or SRP containers (compartments) to PRM groups.
You can dedicate processor cores (PSET), or you can assign Fair Share Scheduler (FSS) shares of the total CPU to a PRM group. When a system has reached maximum CPU capacity, PRM will allocate CPU to the FSS groups based on their relative share size. You may also specify the amount of physical memory (private and shared) available to a PRM group.
PRM group definitions may be configured manually, or through the HP-UX System Management Home Page or SRP Manager GUI. These administration utilities will allow you to configure and track PRM group resource entitlements and usage.
PRM and Oracle database resource manager
HP recommends using SRP with PRM PSETs to address Oracle database licensing requirements for a subset of server CPUs.