I’ve shared a lot of Backblaze data about hard drive failure statistics. While our system handles a drive failing, we prefer to predict drive failures, and use the hard drives’ built-in SMART metrics to help. The dirty industry secret? SMART stats are inconsistent from hard drive to hard drive. With nearly 40,000 hard drives and over 100,000,000GB of data stored for customers, we have a lot of har
![Hard Drive SMART Stats](https://cdn-ak-scissors.b.st-hatena.com/image/square/7e7468715ca73cea1afac88a88203ef03b335806/height=288;version=1;width=512/https%3A%2F%2Fwww.backblaze.com%2Fblog%2Fwp-content%2Fuploads%2F2014%2F10%2Fblog_smart-stats.jpg)