Appendix B. Using the SRM Script Library

The /usr/lib/failsafe/common_scripts/scriptlib file contains the library of environment variables (beginning with uppercase HA_) and functions (beginning with lowercase ha_) available for use in your action scripts.

This chapter describes functions that perform the following tasks, using samples from the scriptlib file:

• Linux FailSafe application interfaces

• Set global definitions

• Check arguments

• Read an input file

• Execute a command

• Write status for a resource

• Get the value for a field

• Get resource information

• Print exclusivity check messages