Hard drive manufacturers make their best guesses about drive longevity based on tests completed in a controlled environment. They assign an MTBF (Mean Time Between Failure) rating that becomes part of the drive’s specification. Ratings have risen dramatically over the years with drives expected to last 114 to 170 years!
Recently, engineers at Google conducted their own real-world tests. (A PDF copy of the study is downloadable at: http://research.google.com/archive/disk_failures.pdf). The Google study identified several factors that contributed to the early death of a hard drive but the report drew no concrete conclusions.
DriveSavers, a data recovery service provider that has been in business for over 20 years, recommends replacement of computer hard drives every 3-5 years. It is worth noting that many businesses and consumers make it a habit to upgrade their computers with larger hard drives and faster processors to accommodate new versions of their operating systems.
The next time you need to recover critical data from a failed hard drive, call DriveSavers at their toll-free number, 800.440.1904, and mention this special coupon code, DS91211, to receive a 10% discount.