HP Process Resource Manager User's Guide

Appendix E 249

E Using PRM with Serviceguard

The optional HP product Serviceguard provides users and applications

with a high availability environment. Serviceguard makes this

environment possible by moving applications from one server to another

when the original server or application session is unable to complete the

desired jobs. You can set up PRM to control applications on the primary

server and on a secondary server in the event of a failover. Such a set up

requires a Serviceguard package control script that consists of the

applications that PRM controls and a customer-deﬁned function to

control PRM.

Specify applications that PRM should control using the SERVICE_CMD[]

variable in the package control script. When specifying an application, be

sure to launch the application under PRM control using the prmrun

command. For example, the following line launches application in the

PRM group math_dept.

SERVICE_CMD[0]=”/opt/prm/bin/prmrun -g math_dept

application”

NOTE If application records in your PRM conﬁguration reference executable

ﬁles that are unavailable due to being on a ﬁlesystem that is part of a

Serviceguard package that is not available, PRM ignores the application

records. Reload the PRM conﬁguration with prmconfig when the

ﬁlesystem is present for the application records to take effect. To

automate the reload, you could place the prmconfig command toward

the end of the Serviceguard package script.