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What does MTBF represent in the context of availability?

The total uptime of a system

The average time between failures

MTBF, or Mean Time Between Failures, represents the average time elapsed between one failure of a system and the next. In the context of availability, MTBF is a critical metric because it indicates the reliability of a system. A higher MTBF suggests that the system is capable of running for longer periods without experiencing failures, contributing significantly to overall system availability.

By measuring MTBF, organizations can evaluate how often systems are likely to fail and plan maintenance or upgrades accordingly. This metric is particularly valuable in designing and maintaining data centers, where uninterrupted service is essential. Thus, understanding and maximizing MTBF helps ensure that downtime is minimized and that the services provided by the data center remain consistently available to users.

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The amount of downtime during a specified period

The time taken to repair a system after failure

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