CSD November 2000: Table for Feature: High-Availability Systems Made Easy: Part 1

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18 March 2010

Feature: High-Availability Systems Made Easy: Part 1

TABLE 1: Various Board States Explained

State Definition

2BSU Normal system operating state.Two boards up; system is up. One board active, one standby

1BSU One board has failed. Failure was covered by remaining board. System is up.

1BSD One board has failed. Failure was not covered successfully by remaining board. System is down.

0BSD Both boards have failed. System is down.

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