Interstage Shunsaku Data Manager Operator's Guide - Microsoft(R) Windows(R) 2000/ Microsoft(R) Windows Server(TM) 2003 - - UNIX -

8.1 Overview of Shunsaku's HA Functions

This section explains the overview of Shunsaku's HA functions.

For systems that cannot allow jobs to stop, system availability must be improved by preparing for system failures that may arise while jobs are running.

Failures may relate to:

• Hardware faults
• Software errors and
• Other unexpected events

Shunsaku provides the following HA functions in preparation for unexpected circumstances, allowing systems with high availability to be constructed.

• Failover Function for Director Servers
• Failover Function for Search Servers
• Degradation Function for Searchers

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8.1.1 Failover Function for Director Servers

8.1.2 Failover Function for Search Servers

8.1.3 Degradation Function for Searchers