Hdd Read Error Rate 200
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Tags Users Badges Unanswered Ask Question _ Ask Ubuntu is a question and answer site for Ubuntu users and developers. Join them; it only takes a minute: Sign up Here's read error rate 1 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 has recently started to become a bit unreliable, and for some reason I started to suspect that my HDD was starting to read error rate crystaldiskinfo 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 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 th
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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 http://askubuntu.com/questions/20393/how-do-i-interpret-hdd-s-m-a-r-t-results can answer The best answers are voted up and rise to the top What does the S.M.A.R.T. data indicate? up vote 2 down vote favorite 2 Speccy gives me this information for one of my hard drives: Manufacturer Western Digital Interface IDE Capacity 977GB Real size 1 000 204 886 016 bytes S.M.A.R.T 01 Read Error Rate 200 (200 worst) Data 0000000000 03 Spin-Up Time 220 (163) Data 0000000F97 http://superuser.com/questions/199475/what-does-the-s-m-a-r-t-data-indicate 04 Start/Stop Count 100 (100) Data 0000000206 05 Reallocated Sectors Count 200 (200) Data 0000000000 07 Seek Error Rate 100 (253) Data 0000000000 09 Power-On Hours (POH) 092 (092) Data 00000017F6 0A Spin Retry Count 100 (100) Data 0000000000 0B Recalibration Retries 100 (100) Data 0000000000 0C Device Power Cycle Count 100 (100) Data 00000001C3 C0 Power-off Retract Count 200 (200) Data 000000001A C1 Load/Unload Cycle Count 200 (200) Data 0000000206 C2 Temperature 119 (099) Data 000000001F C4 Reallocation Event Count 200 (200) Data 0000000000 C5 Current Pending Sector Count 200 (200) Data 0000000000 C6 Uncorrectable Sector Count 200 (200) Data 0000000000 C7 UltraDMA CRC Error Count 200 (200) Data 0000000000 C8 Write Error Rate / Multi-Zone Error Rate 200 (200) Data 0000000000 Temperature 31 °C Temperature Range ok (less than 50 °C) Status Good I have a feeling it is close to dying, but I don't really know how to read this data. So... what does those different lines and numbers mean exactly? I am for example sure that my hard drive has started up more than a 100 times, so yeah... not sure how to read this data. hard-drive smart share|i
S.M.A.R.T. is the abbreviation for "Self Monitoring And Reporting Technology". It is a standard interfaceprotocol and set of the disk features that http://www.z-a-recovery.com/manual/smart.aspx allowsdisk to check its status and report it to a host system. S.M.A.R.T. information consists of "attributes", each one describing some particular aspect of drive condition. Some https://en.wikipedia.org/wiki/S.M.A.R.T. attributes may be designated "life-critical", which implies that the corresponding parameters are more important than other ones. Three values are associated with each S.M.A.R.T. attribute: "Normalized value", read error commonly referred to as just "value". This is a most universal measurement, on the scale from 0 (bad) to some maximum (good) value. Maximum values are typically 100, 200 or 253. Rule of thumb is: high values are good, low values are bad. "Threshold" - the minimum normalized value limit for the attribute. If the read error rate normalized value falls below the threshold, the disk is considered defective and should be replaced under warranty. This situation is called "T.E.C." (Threshold Exceeded Condition). "Raw value" - the value of the attribute as it is tracked by the device, before any normalization takes place. Some raw numbers provide valuable insight when properly interpreted. These cases will be discussed later on. Raw values are typically listed in hexadecimal numbers. Most common S.M.A.R.T. attributes reference Note that not all of the attributes are present on all drives. Some attributes are of similar meaning (just counted differently), so only one of them will normally be monitored by the drive. Some require special sensors (e.g. temperature or G-loads monitoring). The decision about which attributes should be implemented is up to the drive vendor. Along the same lines the interpretation of raw values depends heavily on the manufacturer. Critical device status attributes Reallocated sectors count Indicates how many defective sectors were discovered on the drive
(Self-Monitoring, Analysis and Reporting Technology; often written as SMART) is a monitoring system included in computer hard disk drives (HDDs) and solid-state drives (SSDs)[1] that detects and reports on various indicators of drive reliability, with the intent of enabling the anticipation of hardware failures. When S.M.A.R.T. data indicates a possible imminent drive failure, software running on the host system may notify the user so stored data can be copied to another storage device, preventing data loss, and the failing drive can be replaced. Contents 1 Background 2 History and predecessors 3 Provided information 4 Standards and implementation 4.1 Lack of common interpretation 4.2 Visibility to host systems 5 Access 6 ATA S.M.A.R.T. attributes 6.1 Known ATA S.M.A.R.T. attributes 6.2 Threshold Exceeds Condition 7 Self-tests 8 See also 9 References 10 Further reading 11 External links Background[edit] Hard disk failures fall into one of two basic classes: Predictable failures, resulting from slow processes such as mechanical wear and gradual degradation of storage surfaces. Monitoring can determine when such failures are becoming more likely. Unpredictable failures, happening without warning and ranging from electronic components becoming defective to a sudden mechanical failure (which may be related to improper handling). Mechanical failures account for about 60% of all drive failures.[2] While the eventual failure may be catastrophic, most mechanical failures result from gradual wear and there are usually certain indications that failure is imminent. These may include increased heat output, increased noise level, problems with reading and writing of data, or an increase in the number of damaged disk sectors. A field study at Google [3] covering over 100,000 consumer-grade drives from December 2005 to August 2006 found correlations between certain SMART information and actual failure