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

8.6 Designing Failovers for Search Servers

As part of the design of failovers for search servers, decide how many search servers to prepare for alternative searchers, depending on the degree of availability demanded. Place as many alternative searchers on these search servers as there are regular searchers on the search servers used normally.

By setting information for these search servers and alternative searchers in the system environment file, the alternative searchers can be used from each director.

[Figure : Failovers for Search Servers]

Alternative searchers can be allocated so that they can be used from any director in the Shunsaku system, or allocated so that they can only be used from particular directors.

Additionally, settings can be made so that if a hardware fault occurs on a search server with multiple searchers then a single searcher error is regarded as an error with the entire search server.

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8.6.1 Installing and Setting Up Shunsaku Systems Including Alternative Searchers

8.6.2 Adding Alternative Searchers

8.6.3 Failover Operations for Search Servers