HP-UX System Administrator's Guide: Overview

NOTE: WLM manages workloads on individual servers. To manage workloads on
multiple servers, install and configure WLM on each of the servers.
WLM can be integrated with HP Serviceguard by storing the WLM configuration file
in a file system shared by all nodes in the cluster and then activating the configuration
on each node independently.
Alternatively, you can use the HP Integrity Essentials Global Workload Manager
(gWLM) to manage workloads across multiple servers. gWLM allows you to define
resource-sharing policies that can be used across the servers.
How to Obtain
The Workload Manager is available as a standalone product that can be purchased
from an HP authorized reseller or is available in the following operating environments:
• DC-OE - Data Center Operating Environment
• VS-OE - Virtual Server Operating Environment
• MC-OE - Mission Critical Operating Environment
For Further Information
Detailed information about the Workload Manager is available on HP’s web site at:
• HP-UX Workload Manager User's Guide
• The official Workload Manager web site: http://www.hp.com/go/wlm
• The official HP Integrity Essentials Global Workload Manager web site: http://
www.hp.com/go/gwlm
Processor Sets (PSETS)
Processor Sets, a key technology underlying the Process Resource Manager and the
Workload Manager, can also be used on its own.
Technology Summary
A processor set represents a set of cores grouped together as an independent scheduling
domain for use by the HP-UX scheduler for exclusive access to applications assigned
to that processor set. Processor Sets allow you to isolate compute intensive or high
priority applications from other processes running on a server giving you greater
control over the scheduling of critical processes. Processor Sets may be created and
re-configured dynamically by users who have the appropriate privileges.
The Processor Sets technology can be used alone, but is often used in conjunction with
the Process Resource Manager (PRM).
Tools to Administer/Configure
The psrset command creates and manages processor sets.
Load Balancing (One Multiple Core Server, One Operating System Instance) 29