I just got a new 14TB WD MyBook (model WD140EDGZ) and immediately checked its SMART health. To my surprise, it started at 90.9% with zero power-on hours, but after transferring about 4TB of data over 12 hours, the rating dropped to 80.8%. I've since added another 1-2TB of data, and it's stuck at that rating. What's puzzling is that all the key health indicators—like reallocated and uncorrectable sectors—are perfectly fine, sitting at zero, except for the helium gas level, which is at 100. Someone mentioned that the algorithm used by DriveDX might be the cause of this anomaly. Should I be concerned about this rating change?
2 Answers
You're right to be curious, but it sounds like there's nothing to worry about! The overall SMART rating given by tools like DriveDX isn't a standard metric and can differ from what other programs like CrystalDiskInfo show. Claude's got the right idea; SMART attributes showing zero means your drive is actually fine. If you like, you can share a screenshot for a second opinion!
That makes sense! I had a similar concern with my drive. Just keep an eye on the important indicators like the reallocated sectors. If those stay at zero, you're likely in good shape. Also, for screenshots, sometimes reloading the page can fix the upload button issue if you don’t see it right away!
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