A system designed with redundancy so that it can continue to function when faults, such as damage to hardware, software, or data, occur.
Resistant to failure. For example :A RAID mirrored subsystem is fault tolerant since it can still provide I/O if one disk drive in the mirrored system fails.
Capable of uninterrupted operation when breakdowns occur. Achieved through duplicate hardware or components, sometimes, called redundant or nonstop hardware.
Referring to a computer system or network that is resistant to software errors and hardware problems.
Fault tolerant architecture allows the system to continue working even when part of the system fails. This is usually done by having multiple components running in parallel; when one part fails the redundant devices can take over, allowing engineers to repair the system without disrupting the process.
A system that continues operating when an error is detected. Such systems are needed, for example, in the control circuits of airplanes and nuclear reactors. In these situations, shutting down the controls once an error is detected is unacceptable.
A system or subsystem that can continue operation after hardware failure and without interruption
Able to withstand a considerable degree of error without crashing. This may involve copying data or mirroring data and having extra capacity. It is often achieved by using several separate processors, each monitoring the others and operating a voting system, so that if one fails, the others shut it down, call for human help and carry on operations.
a power supply system configuration to ensure the maintenance of system power despite the loss of any single power module. The usual technique is to provide redundant power modules on an n + 1 basis, with sufficient isolation that the failure of any one power module does not cause system failure.
Refers to the ability of a system to keep on operating in case of hardware failures. This is often realized through technologies including RAID, SMP etc.
