HP-UX Workload Manager overview

by Instant Capacity, TiCAP, or PPU. The WLM interval should be set to a value greater than 60

seconds to ensure a fair allocation of CPU resources for FSS groups.

In either case, the minimum number of cores allocated to a WLM host must be greater than or equal

to the maximum number of virtual CPUs (vCPU count) assigned to each VM guest. For more

information, see the HP-UX Workload Manager User’s Guide.

Figure 6 illustrates how WLM can be used with HP Integrity Virtual Machines. In this example, WLM

runs on the Integrity VM host and in three of the four guests.

Figure 6. WLM and Integrity Virtual Machines

For more information on HP Integrity VM, go to http://www.hp.com/go/vse and click the Solutions

components tab.

Using HP-UX Workload Manager with HP Serviceguard

Using WLM with Serviceguard, you can:

• Decrease the performance impact of a failover caused by software being unavailable in

active/active configurations (where both the primary and standby servers are active)

• Increase utilization of a system that receives failover packages

• Simplify the configuration of failover scripts

• Simplify routine or scheduled maintenance

Incorporate your WLM configuration in the HP Serviceguard configuration so that if an application is

failed over to an alternate nPartition or virtual partition, WLM automatically recognizes this and

reconfigures all applications within the partition, according to predefined rules and SLOs. You can

incorporate your WLM configuration in the HP Serviceguard configuration by storing the WLM

configuration file in a file system shared by all nodes in the cluster. Activate the WLM configuration

on each node independently.

WLM provides many features that support integration with Serviceguard. For more information, as

well as step-by-step procedures for integrating the products, see the white paper, “More efficient high

availability through manageability (integrating Serviceguard and HP-UX Workload Manager),”

available from the Information Library at http://www.hp.com/go/wlm.