Read Error Rate Current Worst Threshold
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"Self-Monitoring, Analysis, and Reporting Technology". First developed in the 1992 by leading hard drive manufacturer, S.M.A.R.T. becomes a quasi standard to monitoring and tracking sensitive values from your drive to what is raw read error rate prevent hard drives from fail. The plan was, if a hard
Raw Read Error Rate Fix
drive says 'I will die soon', the motherboard tell us, so we can backup and change quick the
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drive. Unfortunately this doesn't works very often. Attributes, Values, Thresholds and S.M.A.R.T. examples Attributes describes the measured value of hard drive controller operations. The values of an attribute are: current,
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worst, threshold and raw. Values are normalized to a vendor specific scale. Scales could be ranged up to 100, 200 or 253. Often higher values are better than lower values. The threshold marks the value at which the hard drive could fail. The worst value is the baddest value seen for this drive at this attribute. The raw value is raw read error rate 1 a vendor coded count that give, after decoding, the normal values like current, worst and threshold. S.M.A.R.T. Interpretation First some important knowledge about threshold values. If threshold is 0 the attribute has only information character. If threshold is 253 the attribute is only for testing reason. A typical attribute set could be: Attribute name: "Read Error Rate" Current: 253 Worst: 253 Threshold: 63 Raw: 0 All right , this is a nice set. Nothing happens at this attribute. Only if this attribute reach the threshold value 63, we should have to change the hard drive. Let's look on a attribute with a warning status: Attribute name: "Read Error Rate" Current: 113 Worst: 85 Threshold: 63 Raw: 1234567 The hard drive have sector read errors in the past, but work fine for now and (perhaps) work fine in the near feature. However, I would now start to make more often backups and begin to plan a hard drive change. It is difficult to make correct interpretations in general, because different vendors normalize values in different way. We
The hard drive, HDD or SSD, it the most important part of our PC, containing irreplaceable data. Unfortunately, it is not a matter of "If" a hard raw read error rate western digital drive fails, but of "When". Using CrystalDiskInfo we can predict if hard raw read error rate western digital fix disk failure is imminent, and backup our files in time. Contents1 The S.M.A.R.T. way to predict hard disk failure2 Download raw read error rate failed and Install CrystalDiskInfo3 How CrystalDiskInfo predicts Hard Disk Failure3.1 How to read and interpret CrystalDiskInfo data4 Should I panic if I get a Caution or Bad health status?4.1 Do you suspect an imminent http://www.easis.com/smart-value-interpretation.html Disk Failure for one of your hard drives? The S.M.A.R.T. way to predict hard disk failure The worst thing about hard disk failure - apart from losing any file we didn't have a backup of - is that it will often come out of the blue. Sometimes we might hear clicking sounds from the drive, or get file/folder related error messages. Most of the time, https://www.pcsteps.com/2530-predict-hard-disk-failure-crystal-disk-info/ though, the drive will seem to work just fine, and we get a BSOD on the next reboot or a message like that... It's good then that there is a system that can statistically predict hard drive failure. Its name is Self-Monitoring, Analysis, and Reporting Technology (S.M.A.R.T) and it is part of any hard drive that has been manufactured the past decade. The S.M.A.R.T protocol was developed by IBM, Seagate, Quantum, Conner, and Western Digital in 1995, based on an earlier system by IBM. It measures key characteristics of the HDD, such as the read error rate, reallocated sectors, seek error rate, etc. which can be used to predict hard disk failure. Unfortunately, even though there have been more than half a dozen of Windows versions since 1995, not one of them can read the S.M.A.R.T data, probably for licensing reasons. So, we need to use external software to monitor S.M.A.R.T and our hard drive's health. And CrystalDiskInfo is one of the best such programs. Download and Install CrystalDiskInfo We will find the latest version of CrystalDiskInfo athttp://crystalmark.info/download/index-e.html It's best to download the portable version because it can run without an installation, and it
is not able to predict disk failure in all cases. It may be partially true - but the situation is not too simple. Now, we want to http://www.hdsentinel.com/smart/index.php make things clear. First, we examine what is S.M.A.R.T. and how it works. Advanced users may skip some paragraphs. S.M.A.R.T. S.M.A.R.T. (Self-Monitoring Analysis and Reporting Technology) is designed by IBM. It was created to https://community.wd.com/t/interpreting-smart-results/14489 monitor the disk status by using various methods and devices (sensors). A single ATA hard disk may have up to 30 such measured values, which are called attributes. Some of them directly or indirectly read error affect hard disk health status and others give statistical information. Today all modern IDE/Serial ATA/SCSI hard disks have S.M.A.R.T. feature. It is not really a standard - so the meaning of the attributes may be different from manufacturer to manufacturer. In this article, we discuss ATA (IDE and Serial ATA) hard disks only. SCSI hard disks work differently: the failure predicition data is standard and there are read error rate strict rules about the sensors and algorythms. For example, the difference between real temperature and the result measured by the sensor should be less than +/- 3 Celsius degrees. Many attributes are used by all manufacturers and they are used in the same (or near same) way. That's why for example it is possible to detect the temperature and the total power on time of many hard disks. Newer applications are able to detect, process and display these information. According the S.M.A.R.T. specifications, when a problem is detected (failure predicted), the hard disk should work for at least 24 hours to perform the data backup. But in many cases this time is not enough - that's why it is important to recognize problems and prepare before it's too late. Click here to see the full list of S.M.A.R.T. attributes (for example: reallocated sector count, off-line uncorrectable sectors count, etc.) and their meanings. S.M.A.R.T. in action The current status of the hard disk are constantly examined by many sensors. The measured values are then processed by some algorythms and the corresponding attributes are modified according the results. A single S.M.A.R.T. attribute has the following fields: Identifier (byte): the meaning of the attr
Value Threshold Worst Warranty Raw Read Error Rate: 200 51 200 1 Spin Up Time: 135 21 135 1 Start/Stop Count: 100 0 100 0 Re-allocated Sector 200 140 200 1 The rest of the thresholds are "0" so if the Values and Worst values are needed please let me know. The SMART result is PASS.... yet it appears there are 3 items which are valid for Warranty, unless I am interpreting the results incorrectly. Can someone advise on the state of this disk? Its not even a year old. drevin 2011-06-23 18:49:50 UTC #2 I think the '1' in the warranty column means that IF there are problems with that attribute, THEN the drive is valid for warranty. However, your drive's values seem OK: Raw Read Error Rate: Value 200, Threshold 51, Worst 200 Reallocated Sectors: Value 200, Threshold 140, Worst 200 Spin Up Time: Value 135, Threshold 21, Worst 135 As you can see, none of the attributes have dropped below their given threshold. The first two attributes are still at 200, that's the initial value of new drives. Spin up time has degraded a bit, but that's probably nothing to worry about. My drive has a spin up time of 172 and never had any problems with it. 96ghia 2011-06-23 20:48:02 UTC #3 Thanks. SOrry that the formatting on the message got a bit borked! 96ghia 2011-06-23 20:51:10 UTC #4 Also, I had the impression that higher numbers were worse, but that appears not to be the case? drevin 2011-06-23 21:14:55 UTC #5 Yes, in the Value / Worst columns, lower is worse and higher is better. What about the following attributes, is their Value / Worst also 200? -Current Pending Sector Count -Offline Uncorrectable Sector Count -UltraDMA CRC Error Rate (attribute names may vary a bit depending on testing tool) fzabkar 2011-06-23 22:28:29 UTC #6 See this article for SMART info: http://en.wikipedia.org/wiki/S.M.A.R.T. You can think of the normalised attribute values as health scores. This means that, except for temperature, higher numbers are better. David_Pierson 2011-06-26 01:32:02 UTC #7 Hi Drevin is correct when asking to see the values for -Current Pending Sector Count -Offline Uncorrectable Sector Count A year or two ago I had a WD d