This document provides information about initialization, termination, backout, restart, and recovery processes in an Adabas Parallel Services cluster environment. It tells you how to plan an outage and how to use the utility functions that are provided specifically for cluster environments. Finally, it provides a sample of the session-end statistics produced for a clustered nucleus and describes how to improve performance and tune Adabas Parallel Services.

This document is organized as follows:

Initialization	Describes topics related to Adabas Parallel Services initialization.
Termination	Describes topics related to Adabas Parallel Services termination.
Using Alert and Timeout Settings	Describes alert and timeout settings that can be specified to help you prevent or handle critical situations where system problems affect the availability of cluster members.
Collaboration Between Cluster Nuclei	Describes enhancements for making the nuclei in a cluster more independent of one another.
Backout Processing	Describes Adabas Parallel Services backout processing.
Restart/Recovery Processing	Describes Adabas Parallel Services restart and recovery processing.
Utility Processing	Describes Adabas Utilities processing pertinent to Adabas Parallel Services.
Cluster Nucleus Session End Statistics	Describes the statistics collected for a cluster nucleus session.
Performance and Tuning	Describes performance and tuning you can do for Adabas Parallel Services.
Adabas SMF Records	Describes Adabas SMF records and how they can be produced.
Adabas Online System Cluster Environment Screens	Describes the Adabas Online System version 7.4 screens that apply to the Adabas Parallel Services cluster environment.