HDDs sometimes failed in below Three years in Backblaze research of 17,155 failed drives

A technician repairing a hard disk drive with a tester

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We not too long ago lined a research by Safe Information Restoration, an HDD, SSD, and RAID information restoration firm, of two,007 faulty laborious disk drives it acquired. It discovered the common time earlier than failure amongst these drives to be 2 years and 10 months. That appeared like a brief life span, however contemplating the restricted pattern measurement and evaluation in Safe Information Restoration’s report, there was room for skepticism. As we speak, Backblaze, a backup and cloud storage firm with a status for detailed HDD and SSD failure evaluation, adopted up Safe Information Restoration’s report with its personal analysis utilizing a a lot bigger information set. Among the many 176,155 failed HDDs Backblaze examined, the common age at which the drives failed was 2 years and 6 months.

2 years, 6 months

Backblaze arrived at this age by analyzing all of its failed drives and their respective power-on hours. The corporate recorded every drive’s failure date, mannequin, serial quantity, capability, failure, and SMART uncooked worth. The 17,155 drives examined embrace 72 totally different fashions and doesn’t embrace failed boot drives, drives that had no SMART uncooked attribute information, or drives with out-of-bounds information.

If Backblaze solely checked out drives that it did not use in its information facilities anymore, there could be 3,379 drives throughout 35 fashions, and the common age of failure could be a bit longer at 2 years and seven months.

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