HDD Specs: Assess MTTF, AFR and UER to Get The Drives You Need
ComputerWeekly, March 21st, 2023
In part one of a two-part series, we look at key hard disk drive specs, including mean time to failure, annual failure rate and unrecoverable error rate, and how they relate to each other
Hard disk drives (HDDs) deliver high storage capacities at low cost, but HDD models can differ considerably.
Capacity and price are not the only criteria that should determine the choice of HDD. Other specifications such as reliability and ability to handle challenging operating conditions must also be taken into account.
HDDs are still the most common form of data storage and often the best-suited to storing increasing volumes of data. HDD technology is still being developed and is significantly cheaper per unit of capacity than flash storage.