Academic journal article ABA Banking Journal

Fault-Tolerant Computing Yields Non-Stop Action

Academic journal article ABA Banking Journal

Fault-Tolerant Computing Yields Non-Stop Action

Article excerpt

Stratus Computer, Marlboro, Mass., has built its reputation supplying "pair and spare" fault-tolerant UNIX and VOS servers for applications that include running ATM networks, core banking systems, or trading systems.

Designed on UNIX equipment, the company's Continuum Series works with duplexed components running in lockstep in two separate-but-cooperating units, so that if one server goes down, the "spare" is there to carry the computing load.

The newly introduced Stratus 2000 IA32 will run on Microsoft 2000 operating systems, when it is available later this year (supporting standard versions of the Windows 2000 server, advanced server, and data center server). Like the Continuum technology, the new system works with fully redundant components, all "hot-swappable" (meaning that failed parts can be easily removed and replaced) and user-serviceable in a standard 19-inch rack-mount package.

Like the Continuum models, this approach is to make the equipment easy to install, monitor, and service without expensive outside intervention. But the Windows unit is less expensive than its UNIX and VOS counterparts, requires fewer parts, and works with off-the-shelf parts.

Essentially, Stratus provides an alternative to "cluster" based server technology which, should it go down, is disruptive to network services. …

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