Use of AIX HACMP for Server Failover

IBM's tool for building UNIX-based, mission-critical computing platforms is the HACMP for AIX software. The HACMP for AIX software ensures that critical resources are available for processing. HACMP for AIX has two major components: high availability (HA) and cluster multi-processing (CMP).

Until recently, the only avenue for achieving high availability in the UNIX realm was through fault-tolerant technology. Fault tolerance relies on specialized hardware to detect a hardware fault and instantaneously switch to a redundant hardware component—whether the failed component is a processor, memory board, power supply, I/O subsystem, or storage subsystem. Although this cutover is apparently seamless and offers non-stop ...

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