Blade Clustering System with SMP Capability and Redundant Clock Distribution Architecture Thereof

摘要

A redundant clock distribution architecture is provided for a blade clustering system to achieve SMP (symmetric multi-processor) capability and flexible system configuration. The architecture mainly provides a central clock signal from a central clock and a local clock signal from an operative local clock configured on each blade module of the system. A clock multiplexer selects the central clock signal and sends to plural local clock consumers on each blade module. The clock multiplexer switches to send the local clock signal if the central clock fails.