Read Error Rate Hard Drive
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communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more read error rate fix about hiring developers or posting ads with us Ask Ubuntu Questions Tags Users Badges Unanswered Ask read error rate 1 Question _ Ask Ubuntu is a question and answer site for Ubuntu users and developers. Join them; it only takes a minute: Sign up read error rate crystaldiskinfo Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the top How Do I interpret HDD S.M.A.R.T Results? up vote 40 down vote favorite 10 My laptop
Read Error Rate 200
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?), I'm not sure how to interpret the results: For example, the Read Error Rate is over 50 million (!), yet what is raw read error rate 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 use different structures and meanings for this data. Normalized: This is the above value normalized so a higher value is always better. So a 114 in read/error rates is better than 113. Again, how your hard drive converts raw data to normal
Gaming Smartphones Tablets Windows 8 PSUs Android Your question Get the answer Tom's Hardware>Forum>Storage>Raw Read Error Rate> Raw Read Error Rate Tags: Hard Drives Speedfan Storage Last response: 26 July 2009 20:18 in Storage Share jdog2pt0 25 July 2009 13:11:29 As I am not sure what all raw read error rate western digital this data means, an online SMART scan through speedfan gives me this. Attribute Current Raw Overall
Raw Read Error Rate Fail
0 Raw Read Error Rate 163 175824 Watch Warning: Raw Read Error Rate is below the average limits (173-200). 10 Spin Up Time 175
Raw Read Error Rate 1
2216 Very good 10 Start/Stop Count 100 7 Very good 10 Reallocated Sector Count 200 0 Very good 10 Seek Error Rate 200 0 Very good 6 Power On Hours Count 98 1605 Good 10 Spin Retry Count 100 0 http://askubuntu.com/questions/20393/how-do-i-interpret-hdd-s-m-a-r-t-results Very good 10 Calibration Retry Count 100 0 Very good 10 Power Cycle Count 100 690 Very good 10 Power Off Retract Count 200 661 Very good 10 Load Cycle Count 200 697 Very good 1 Reallocated Event Count 199 1 Normal 10 Current Pending Sector 200 0 Very good 10 Offline Uncorrectable Sector Count 200 0 Very good 10 Ultra DMA CRC Error Rate 200 2 Very good 10 Write Error Rate 200 0 Very good I have a Western http://www.tomshardware.com/forum/250912-32-read-error-rate Digital 2500AAKS and twice I have run the Data Lifeguard Diagnostics and gotten code 0223 or 223 here http://support.wdc.com/techinfo/general/errorcodes.asp . The first time ran I the diagnostic because I lost windows. The second time, just the other day, I can close to losing windows but managed to save it. The raw read error rate doesn't seem to be well on the smart scan and I would like to know more about this. More about : raw read error rate jdog2pt0 25 July 2009 13:51:52 Sorry about the smart thing, nobody will be able to understand that, here's a picture instead. sub mesa a c 127 G Storage 25 July 2009 20:17:02 No immediate problems. Only 1 reallocated sector, just the ECC needs to fix the raw medium errors, which is normal given the data density. Harddrives don't really know what they are storing anymore, only after ECC has been applied is the data reliable enough not to have any bit errors. In other words, its normal that the raw read error count is quite high. All modern disks are vulnerable to this issue. Related resources Internal HDD Raw Read Error Rate - Tech Support Raw Read Error Rate Failure and Pending Sectors - Tech Support OCZ Vertex 3 Raw Read Error Rate/Predicted TEC - Tech Support Very high Raw Read Error Rate for S.M.A.R.T. - Tech Support Raw Read Error Rate and Current Pending Sector Count and Offline Uncorre
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about http://superuser.com/questions/867801/high-s-m-a-r-t-read-error-rate hiring developers or posting ads with us Super User Questions Tags Users Badges Unanswered Ask Question https://www.quora.com/Hard-Disk-Drives-HDD-Why-is-a-hard-drives-raw-read-error-rate-important _ Super User is a question and answer site for computer enthusiasts and power users. Join them; it only takes a minute: Sign up Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the top High S.M.A.R.T read error rate up vote 1 down vote favorite 1 I have a Seagate read error ST9750420AS HDD in my laptop, which I have been using for the last couple of years. I recently realized that the disk was noticeable slower than before, so I decided to check the SMART data. Everything seemed to be OK. A bit more than a year powered on, head flew for 11 months... and all the read errors successfully corrected; no big deals. I decided to note anyway the read error rate, which had a value of 60M (normalized read error rate 119, threshold 6, worst 99). Today (3 days after), I checked again those numbers and the read error rate value is at 215M, which seems to me like a huge increase in a little time. The normalized and worst values haven't changed anyway, so the assesment is still OK in the SMART data. Should I be worried? My data is backed up, but should I be already buying a new HDD for my laptop? hard-drive smart share|improve this question asked Jan 21 '15 at 22:09 Peque 551312 It may be simply a loose connection. Try to disconnect the HDD and install it again. –gronostaj Jan 21 '15 at 22:15 @gronostaj: The HDD is mounted with screws, but anyway I will try that. Thanks! :-) –Peque Jan 21 '15 at 22:29 1 There has to be some type of data connection. 215 million errors is not normal. Be sure you understand how S.M.A.R.T should be read it snot always obvious. –Ramhound Jan 21 '15 at 23:37 The raw value isn't very meaningful by itself, and not very reliable to predict any failures. If the normalized value is above the threshold, you're fine. Keep your backups up to date, that's all. –Pedro Werneck Feb 21 '15 at 15:43 1 215 million errors is perfectly normal and an inherent part of how modern hard drives operate. Most drives will however hid
error rate" important?UpdateCancelAnswer Wiki3 Answers Steve NordquistWritten 30w agoYou're reading off the SMART or other disk error information, right? Those are times when the drive went to read a sector and didn't get a good signal. It retries and if that's successful there's no problem. If it retries and it's not, the read error rate is going up quick and it might mean you have a bad sector. The drive has spares and will of course try to copy to a good, spare sector on its own. Enough bad sectors though, make for a drive that can't read or write data at all (though hopefully it will be something you can track, so you can replace the drive before performance tanks.)In the case of an SSD it would suggest that the flash has run past some write limitation and even reads trigger some sort of failsafe check. In a hard drive it means either dust made it to the disk surface or servo data's getting messed with, e.g. by fouled circuit boards (salt corrosion, dusty boards) or poorly shielded motors running nearby.Raw error rate can go up from temperature events, maybe even sunspots. Any error at all suggests some sort of pivot (power off a minute, some PLL's gone nuts, etc.) but it's a good way to monitor and maintain (replace, thankfully) the health of a drive.Antivirus software sometimes like to look aside at that info; there's nothing to say without particulars about how that might decide to present the data, other than that they sometimes crib from the news to get attention and that it probably wasn't aware you were going geocaching.312 Views · View UpvotesRelated QuestionsMore Answers BelowHard Disk Drives (HDD): What is more predictive of impending hard drive failure: seek error rate or raw read error rate?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): What is the meaning of "raw read error rate"?What causes hard drives to have high "raw read error rate"?What are some good hard disk drives for Xbox 360? Crystal MayWritten 56w agoYour hard disk gets a RAW file system error and cannot be accessed or used right now? OK! Never panic! From my understanding, the external hard disk with RAW file system often cannot be easily accessed before you follow the Windows message to format it. However, in most cases, since many people get such RAW format drive error unexpectedly and leave much important data inside this drive, they also cannot easily format this drive to erase everything. That’s why people feel depressing. Howe