EETimes: Building Linux high-availability systemsMay 12, 2000, 17:29 (0 Talkback[s])
(Other stories by Brian Ramsey)
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"The much-discussed convergence of separate voice, data and video into an integrated network is creating a host of new product opportunities, many with carrier-class reliability also known as high availability (HA). HA refers to maximizing the availability of systems and applications by decreasing downtime during both routine maintenance operations and unplanned system failures. While not guaranteeing 100 percent uptime, HA systems provide substantial RAS (reliability, availability and serviceability) advantages over conventional computer systems...."
"Leading system manufacturers-such as Force Computers Inc., Motorola Computer Group and Radisys Corp. have developed CompactPCI racks specifically for HA applications. These manufacturers are now looking at Linux implementations in CPCI systems to enhance the cost-effectiveness of HA in software. CPCI is a commercial bus, passive backplane, card and card-cage specification with many features that make it ideal for high availability systems...."
"Commercial implementations of HA system software, like the open-source BlueCat HA Linux from Lynx Real-time Systems, implement the features in a fault-management cycle that describes and controls the actions necessary for dynamically reconfiguring the system to scan errors caused by faults, or by processor failures."
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