Backblaze Hard Drive Stats for 2018

<p>2018 Hard Drive Failure Rates: What 100,000+ Hard Drives Tell Us</p> <p>At the end of 2018 Backblaze was monitoring 104,954 hard drives used to store data. For our evaluation we remove from consideration those drives that were used for testing purposes and those drive models for which we did not have at least 45 drives (see why below). This leaves us with 104,778 hard drives. The table below covers what happened just in 2018.</p>