Definitions for "Mean time between failures"
Related Terms:
Mtbf, Mean time to failure, Mttf, Mean time between failure, Fit, Reliability, Mean time to repair, Availability, Mttr, Down time, Total time, Interval, Rate, Downtime, Duty cycle, Response time, Time series, Uptime , Duration, Cycle time, Timeout, Time, Incidence rate, Failure mode, Recovery time, Takt time, Timestamp , Occupancy, Criticality, Incidence, Holding time, Trend, Hour, Timer, Validity, Datetime, Utilization, Long run, Fishing effort, Return period, Delay time, Average demand, Load profile, Lag , Adt, Demand interval, Time-of-use rates, High availability, Average handle time
Calculated by dividing the total operating time in hours at all field sites by the number of equipment failures from all field sites. Failure of the equipment means failure that requires repair, adjustments, or replacement. Mishandling by the operator, failure due to adverse environmental conditions, power trouble, host system trouble, and other failures not caused by the equipment are not considered.
A quality and maintenance measure of the average time between failures for a resource or product, that cause them to be unusable.
a measure of system or hardware reliability or availability.
n. For a stated period in the life of a functional unit, the mean value of the lengths of time between consecutive failures under stated conditions. .
A quality assurance index describing the expected reliability of our dataloggers.
The average time (usually expressed in hours) that a component works without failure. It is calculated by dividing the total number of failures into the total number of operating hours observed. The term can also mean the length of time a user can reasonably expect a device or system to work before an failure occurs.
The average time interval between failures for repairable product for a defined unit of measure; for example, operating hours, cycles and miles.
The mean time expected between failures for repairable or replaceable items, typically measured in hours. MTBF is meant to be the mean over an infinite period of time MTBF is the inverse of the failure rate. If failure rate is in failures/million hours, MTBF = 1,000,000 / Failure.
A term describing the reliability of equipment established by testing kit to its limits and promoting the MTBF as a selling point. As most users know, however, laboratory and operational environments have little in common.
The limit of the ratio of operating time of equipment to the number of observed failures as the number of failures approaches infinity. The total operating time divided by the quantity (n + 1), where n is the number of failures during the time considered.
The mean time expected between failures, typically measured in hours. MTBF is a statistical value and is meant to be the mean over a long period of time and large number of units. For constant failure rate systems, MTBF is the inverse of the failure rate. If failure rate is in failures/million hours, MTBF = 1,000,000 / Failure Rate for components with exponential distributions. Technically MTBF should be used only in reference to repairable items, while MTTF (Mean Time to Failure) should be used for non-repairable items, but MTBF is commonly used for both repairable and non-repairable items.
The average period of operation before mechanical or software breakdown.
The average time between expected device failures.
MTBF is the mean elapsed time from the time an IT service or component is fully restored until the next occurrence of a failure in the same service or component.
See MTBF.
The average time interval between failures for repairable product for a defined unit of measure (e.g., operating hours, cycles, miles). See: reliability.
A time normally given in hours that predicts the failure rate...
Total calendar operating time divided by number of failures.
An indicator of expected system reliability calculated on a statistical basis from the known failure rates of various components of the system. Note: MTBF is usually expressed in hours. Of a system, over a long performance measurement period, the measurement period divided by the number of failures that have occurred during the measurement period. 3. For population of items, during a measurement period, the total functioning life of the population of items divided by the total number of failures within the population during the measurement period. Note 1: The total functioning life of the population may be calculated as the summation of the operating life of every item in the population over the measurement period. When computing the MTBF, any measure of operating life may be used, such as time, cycles, kilometers, or events. Note 2: For example, if a total of 1,000 events, such as data transfers, radio transmissions, or system boots, occurs in a population of items during a measurement period of 100 hours and there are a total of 10 failures among the entire population, the MTBF for each item is (1000)(100)/10 = 104 hours.
Abbreviated MTBF. The statistically-derived average length of time that a system component operates before failing. ... more
The average time interval between failures of the same type. For instance, the MTBF of the backbone is 1,000 hours; the MTBF of any router is 5,000 hours.
A measure of the reliability of a computer system, equal to average operating time of equipment between failures, as calculated on a statistical basis from the known failure rates of various components of the system.
Mean time between failures (MTBF) is the mean (average) time between failures of a system, the reciprocal of the failure rate in the special case when the failure rate is constant. Calculations of MTBF assume that a system is "renewed", i.e. fixed, after each failure, and then returned to service immediately after failure. A related term, 'Mean Distance Between Failures', with a similar and more intuitive sense, is widely used in transport industries such as Railways and Trucking.