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Fault Tolerance

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ALSO CALLED: Fault-tolerance, Fault Tolerant, FT
DEFINITION: Fault-tolerant describes a computer system or component designed so that, in the event that a component fails, a backup component or procedure can immediately take its place with no loss of service. Fault tolerance can be provided with software, or embedded in hardware, or provided by some combination.In the software implementation, the operating system provides an interface that allows a programmer  … 
Definition continues below.
Fault ToleranceWhite Papers (View All Report Types)
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HP Integrity NonStop NS1000 Server: Standards-Based Innovation at the Entry Level for Business-Critical Applications
sponsored by Hewlett-Packard Company
WHITE PAPER: In today's "do more with less" computing environment, IT managers must weigh the advantages of proven fault-tolerant capabilities against the need to contain costs. Discover a cost-effective solution for the most critical business applications.
Posted: 19 Jul 2006 | Published: 01 Jul 2006

Hewlett-Packard Company

Reducing the Hidden Costs Associated with Upgrades of Data Center Power Capacity
sponsored by Schneider Electric
WHITE PAPER: There are cost factors beyond a standard TCO analysis to be considered when adding a UPS system to a data center. Learn how a rack-based, scalable UPS system allows planned growth to occur easily with minimal impact to existing IT processing applications.
Posted: 13 Jan 2005 | Published: 01 Feb 2005

Schneider Electric

Rack Powering Options for Data Centers and Network Rooms
sponsored by APC by Schneider Electric
WHITE PAPER: Methods and requirements for providing electrical power to Rack Enclosures for Information Technology Equipment are described. The need for the rack power system to adapt to changing requirements is identified and quantified.
Posted: 31 Oct 2002 | Published: 01 Feb 2003

APC by Schneider Electric
26 - 28 of 28 Matches Previous Page    1 2    Next Page
 
FAULT TOLERANCE DEFINITION (continued): … Fault-tolerant describes a computer system or component designed so that, in the event that a component fails, a backup component or procedure can immediately take its place with no loss of service. Fault tolerance can be provided with software, or embedded in hardware, or provided by some combination.In the software implementation, the operating system provides an interface that allows a programmer to "checkpoint" critical data at pre-determined points within a transaction. In the hardware implementation (for example, with Stratus and its VOS operating system), the programmer does not need to be aware of the fault-tolerant capabilities of the machine.At a hardware level, fault tolerance is achieved by duplexing each hardware component. Disks are mirrored. Multiple processors are "lock-stepped" together and their outputs are compared for correctness. When an anomaly occurs, the faulty component is determined and taken out of service, but the machine continues to function as usual.
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