Mac Disk Utility Raw Error Rate
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time! Discuss it in this thread, throw your hot takes here. (MetaTalk) Ask MetaFilter querying the hive mind Log In Sign Up MetaFilter AskMeFi FanFare Projects Music Jobs IRL MetaTalk More Best Of Podcast Chat Labs Search MetaFilter… Menu Home FAQ About Archives Tags Popular Random Disk Utility error: false alarm, or bad omen? May 2, 2009 4:26 PM Subscribe In OS X on my iMac, raw read error rate smart Disk Utility asserts that my main, internal hard drive is "about to fail" and what is raw read error rate has been asserting this for several months. But my computer is running just fine... should I worry? The S.M.A.R.T status
Raw Read Error Rate Fix
is failed, and the various helpful sounding options, like First Aid or Verify, are all unclickably greyed out. Using Boot Camp and HD Tune under windows, I can see the "bad" attribute is: ID
Raw Read Error Rate 1
(01) Raw Read Error Rate Current: 11 Worst: 1 Threshold: 51 Data: 59669 Status: Failed A different utility just names the fields slightly differently... 1, Raw Read Error Rate Raw value: 59699 Status: FAIL Value: 11 Worst: 1 Threshold: 51 All the ther attributes (things like "seek error rate" and "spin up time" and stuff) are normal. But my computer is running just fine. I can't work out raw read error rate fail if this is just some freaky one-time error that happened to the hard drive once which it won't forget about, reflects an existing (if seemingly benign) state of affairs, or is a sign of impending doom. This error has been present for several months now, perhaps even from The Beginning - the iMac is only 6 - 8 months old. The Man From Apple suggested I format my entire drive but that sounds pretty tedious if I don't really need to do anything / insufficient if my hard drive is actually about to die from mechanical failure. Obviously I'd love for you all to tell me how I can safely ignore this, and even how I might be able to disabuse Disk Utility of the notion that things are messed up. On the other hand, if you think there might be trouble ahead, then do snap me out of my complacency and I'll promise not to shoot the messenger. posted by so_necessary to Computers & Internet (17 answers total) 1 user marked this as a favorite Get the drive replaced asap. Your machine might look like it is running fine, until that one morning when you open your $collectionofvaluablefiles and it's CRC-err
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company Business Learn more about hiring developers or posting ads with us Ask Ubuntu read error rate crystaldiskinfo Questions Tags Users Badges Unanswered Ask Question _ Ask Ubuntu is a question and answer site for Ubuntu users and developers. Join them; raw read error rate western digital fix 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 How Do I interpret HDD S.M.A.R.T Results? http://ask.metafilter.com/121096/Disk-Utility-error-false-alarm-or-bad-omen 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?), I'm not sure how to interpret the http://askubuntu.com/questions/20393/how-do-i-interpret-hdd-s-m-a-r-t-results 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 use different structures and meanings for this data. Normalized: This is the above value normalized
Nov. 8, 2013 Nov. 9, 2013 Nov. 11, 2013 Dec. 9, 2013 Dec. 10, 2013 Mar. 19, 2014 Mar. 20, 2014 http://www.macintouch.com/readerreports/harddrives/topic4812.html Mar. 21, 2014 Mar. 22, 2014 Oct. 3, 2014 Oct. 12, 2014 Oct. 13, 2014 Oct. 14, 2014 Feb. 2, 2015 Feb. 3, 2015 Jun. 11, 2015 Jun. 20, 2015 Jun. 22, 2015 Jun. http://www.tomshardware.com/forum/265218-32-seek-error-rate 23, 2015 Jun. 24, 2015 Jun. 25, 2015 Jun. 26, 2015 Newer entries... Feb. 22, 2010 item.109948 WK Lee I've been looking at portable storage devices and while most of them don't implement error rate SMART, I noticed that Hyperdrive implements it in their enclosures. http://www.hypershop.com/HyperDrive-COLORSPACE-UDMA-Casing-Only-p/hdcsu-000.htm This is a brand new product:http://www.hypershop.com/ProductDetails.asp?ProductCode=HDA-000 I don't know if the information is passed through USB and would be recognized by a program like SMART Utility or not. Comment on this posting... May. 27, 2010 item.115138 MacInTouch Reader I've been working with the command line utility "smartctl" and have recently noticed that a small number of the read error rate new computers shipping from Apple have the SMART support disabled. I get the following message: SMART support is: Disabled I can easily enable it and it then functions normally.So far, I have only noticed this on Hitachi drives. Comment on this posting... Aug. 30, 2010 item.120119 David Minehart I have a new Mac Mini 2010, and was trying out the new SoftRaid 4 on it. SoftRaid reported that the internal Hitachi 320GB drive showed excessive bad sectors, and was 20-60 times as likely as a good drive to fail within the next 2-6 months. On the SoftRaid site, I saw mention of their using the results of research done by Google on predictors of drive failure, but no details. Anyone have a better idea of what's going on here? And whether there's a utility I can use to get data to present to Apple, if warranted, to see about getting a replacement drive? Comment on this posting... Aug. 31, 2010 item.120145 Colleen Thompson David Minehart asked "...SoftRaid reported that the internal Hitachi 320GB drive showed excessive bad sectors, and was 20-60 times as likely as a good drive to fail within the next 2-6 months...Anyone have a better idea of what's g
Gaming Smartphones Tablets Windows 8 PSUs Android Your question Get the answer Tom's Hardware>Forum>Storage>Seek error rate> Seek error rate Tags: Hard Drives Seagate Storage Last response: 5 January 2011 13:42 in Storage Share drevin 3 January 2011 11:36:57 I have some questions about the seek error rate SMART attribute. I have a Seagate 500Gb 7200.10 (about 3 years old) that has a high seek error rate. I know that the raw data field has a different structure for different vendors and is thus not very meaningful. However, what concerns me is that the "current" and "worst" fields have also decreased a lot. I believe they initially start from 100, and have dropped to 47/42. The threshold is 30. For comparison, I have an older 120Gb Seagate (almost 2x power on hours) and its current/worst are 80/60. HD Sentinel reports that the HDD health and performance are still 100% and the drive has more than 1000 days left. How can this be, seeing as the seek error rate has dropped from 100 to 42, is pretty close to the threshold and it is supposed to be a critical attribute. Other SMART attributes are still OK, no reallocated or pending sectors. Do you think this is a cause for concern or not? More about : seek error rate Reply to drevin sminlal a c 415 G Storage 3 January 2011 15:24:29 The seek error rate means that the drive is over- or under-shooting the correct track when it moves the heads, and it has to do another (small) re-seek to acquire the track before it can read or write the data. By itself, it's going to be a performance concern, but probably not that big a concern as far as data integrity goes. As far as data integrity, pay more attention to the "Reallocation Count", and "Pending Sector Count" values as they indicate failures to read the data from the disk itself. If those numbers are high or increasing, then you should consider the drive to be unreliable and plan to get you data off it ASAP. Reply to sminlal m 2 l fzabkar a c 459 G Storage 5 January 2011 13:42:59 The normalised value of Seagate's Seek Error Rate is logarithmic. A valu