active redundancy

Active redundancy is required for systems that cannot be maintained, such as satellites.

Active redundancy can be integrated with fault reporting to reduce down time to a few minutes per year.

Active redundancy is used in complex systems to achieve high availability with no performance decline.

This is called active redundancy, which requires no maintenance to prevent mission failure.

Electrical power distribution provides an example of active redundancy.

This concept is applicable to mission critical systems that incorporate active redundancy and fault reporting.

Electrical power systems use power scheduling to reconfigure active redundancy.

Active redundancy in active components requires reconfiguration when failure occurs.

Active redundancy eliminates down time and reduces manpower requirements by automating all three actions.

Two kinds of redundancy are passive redundancy and active redundancy.

Aircraft and missiles have a tendency to randomly fall out of the sky without the kind of high availability provided by active redundancy.

Active redundancy improves operational availability as follows.

Active redundancy eliminates performance decline by monitoring performance of individual device, and this monitoring is used in voting logic.

Formal design philosophies involving active redundancy are required for critical systems where corrective labor is undesirable or impractical to correct failure during normal operation.

Active redundancy may introduce more complex failure modes into a system, such as continuous system reconfiguration due to faulty voting logic.

Active redundancy is a design concept that increases operational availability and that reduces operating cost by automating most critical maintenance actions.

The historic AN/UYK-43 architecture includes active redundancy.

Active redundancy in passive components requires redundant components that share the burden when failure occurs, like in cabling and piping.

Error detection and correction and the Global Positioning System (GPS) are two examples of [active redundancy].

Satellites placed into orbit around the earth must include massive active redundancy to ensure operation will continue for a decade or longer despite failures induced by normal failure, radiation-induced failure, and thermal shock.