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What happens to data in cache in the event of a power outage?

April 26, 2017cache Data event happens outage power

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What happens to data in cache in the event of a power outage?

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As with almost all RAID systems, power outage can cause a full resyncronization of the RAID array, and a rebuild of the file system. Data may be corrupted in some files that were actively being written during the power failure. Use of a UPS is strongly recommended.