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hot standby
A redundant component in a failure tolerant subsystem that is powered and ready to operate and does not operate as long as the primary component is functioning.
Hot standby components increase storage subsystem availability by allowing systems to continue to function when the associated primary component fails. When the term hot standby is used to denote a disk, it specifically means a disk that is ready to perform I/O operations, for example, as the target of a rebuilding operation.
Context Categories:
Computer System