![]() Drives typically fail within a short time if there is a defect present from manufacturing. ![]() ![]() ![]() Hard disk drive failures tend to follow the concept of the bathtub curve. These are calculated by constantly running samples of the drive for a short period of time, analyzing the resultant wear and tear upon the physical components of the drive, and extrapolating to provide a reasonable estimate of its lifespan. Drive manufacturers typically specify a mean time between failures (MTBF) or an annualized failure rate (AFR) which are population statistics that can't predict the behavior of an individual unit. There are a number of causes for hard drives to fail including: human error, hardware failure, firmware corruption, heat, water damage, power issues and mishaps. ![]() 2.4 Example drive families with high failure rates.2.1 Landing zones and load/unload technology. ![]()
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