Hdd Raw Read Error Rate
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Raw Read Error Rate Western Digital
I interpret HDD S.M.A.R.T Results? up vote 40 down vote favorite 10 My laptop has recently started to become a bit unreliable, and for some reason I started to suspect that my HDD was starting to fail. After a bit of hunting on the internet, I found Ubuntu's Disk Utility in the System menu and ran the long SMART diagnostics from this. However, since the documentation for Disk Utility is very poor (palimpsest?), raw read error rate smart I'm not sure how to interpret the results: For example, the Read Error Rate is over 50 million (!), yet the Assessment is rated "Good". So would someone mind explaining to me how to interpret the results of these tests (especially the Normalized, Worst, Threshold and Value numbers)? And maybe tell me what they think of the results I got for my HDD? (Thanks) hard-drive smart share|improve this question asked Jan 6 '11 at 23:46 Marty 78021015 Has the "Hardware ECC recovered" same value as "Read error rate"? My disk has 676 power cycles, was powered on 285 days, and has 193M errors. Compared to mine, your disk has way too much error, but I'm just speculating here. Anyways I just got worried myself o.O –danizmax Jan 7 '11 at 8:47 Yip - both numbers are the same! –Marty Jan 7 '11 at 16:32 add a comment| 3 Answers 3 active oldest votes up vote 32 down vote accepted You have a good description of how SMART works on the wikipedia. But a quick intro: Value: This is the raw value that the controller reports. Usually it's an easy to understand value (like power on hours or temperature), but sometimes it isn't (like the read error rate). Different manufacturers can us
Wiki1 Answer Elizabeth GreeneWritten 70w agoHard drives store digital data in analog format by magnetizing and de-magnetizing tiny microscopic areas of a metal coating on a https://www.quora.com/What-causes-hard-drives-to-have-high-raw-read-error-rate disk spinning thousands of times per minute. This process is amazingly precise, but not perfect. Electrical, Mechanical, Environmental and Chemical issues can cause errors in the data that is read back from the disk. If the errored data happens to contain your life's work, this is a bad thing. To reduce this problem drive manufacturers design the disks with Error detection and correction techniques. These read error allow the drive to detect bad data and fix it before it gets passed back to the operating system. A raw read error is triggered when the drive detects that it read bad data. Automatically fixing the bad data is a very good thing, but it means you don't always know that a drive is failing until it is too late. Drive manufacturers don't read error rate want you to lose data. Nobody wins when you lose data. To help prevent data loss the drive collects error statistics including a count of raw read errors. This technology, called S.M.A.R.T., hopefully gives you a warning to identify and replace a failing drive before losing data.3.1k Views · View UpvotesView More AnswersRelated QuestionsHard Disk Drives (HDD): What is the meaning of "raw read error rate"?Hard Disk Drives (HDD): What is more predictive of impending hard drive failure: seek error rate or raw read error rate?Hard Disk Drives (HDD): Why is a hard drive's "raw read error rate" important?Hard Disk Drives (HDD): What is the difference between a hard drive's "raw read error rate" and its "soft read error rate"?Hard Disk Drives (HDD): How is a hard drive's "raw read error rate" analytically measured?What are the most common reasons of "write error rate" in hard drives?Hard Disk Drives (HDD): What is more indicative of hard drive failure: "write error rate" or "raw read error rate"?What causes hard drives to have high "spin retry count"?What causes hard drives to have high "g-sense error rate"?What causes the bathtub curve failure rate in hard dri