Multi Zone Error Rate
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(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 current pending sector count the intent of enabling the anticipation of hardware failures. When S.M.A.R.T. data indicates smart raw_read_error_rate a possible imminent drive failure, software running on the host system may notify the user so stored data can be copied
Offline_uncorrectable
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
Multi_zone_error_rate
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, udma_crc_error_count 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 rates. In the 60 days following the first uncorrectable error on a drive (SMART attribute 0xC6 or 198) detected as a result of an offline scan, the drive was, on average, 39 times more likely to fail than a similar drive for which no such error occurred. First errors in reallocations, offline reallocations (SMART attributes 0xC4 and 0x05 or 196 and 5) and probational counts (SMART attribute 0xC5 or 197) were also strongly correlated to higher probabilities of failure. Conversely, little correlation was found for increased temperature and no correlation for usage level. However, the research showed that a
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Smart Raw Read Error Rate
Multi_Zone_Error_Rate (again) « previous next » Send this topic Print current_pending_sector Pages: [1] 2 Go Down Author Topic: Multi_Zone_Error_Rate (again) (Read 16323 times) PeterB Community Developer Hero Member Posts: 2440 Multi_Zone_Error_Rate (again) « on: March 30, 2011, 11:00:17 AM » One of my drives, a WD10EADS, which was redeployed from my media player https://en.wikipedia.org/wiki/S.M.A.R.T. in to unRAID, and is now 18 months old, is showing a 'Multi_Zone_Error_Rate' of over 2000.For the first three months this drive was in my unRAID box, the value for this parameter was zero. Over the following three months, the value rose to around 200. Now, in the last three months it https://lime-technology.com/forum/index.php?topic=12049.0 has increased to 2133.The only other point of note in the SMART history for this drive is that it did show one 'Current_Pending_Sector' around five months ago, but this returned to zero and has stayed at zero ever since.I understand that manufacturers give little weight to the Multi_Zone_Error_Rate, but 2000 seems abnormally high. Should I be worried? Logged unRAID 6.2.0-rc5 on X9SCM-iiF/Xeon E3-1230v2, 8GB (2*4GB Kingston DDR3 1600), Thermaltake V5 with 3 CM JetFlo fans, Seasonic X-650, Kingston MobileLite G2 with 2GB SD card, Supermicro AOC-USAS2-L8i, HighPoint RocketRaid 620, 3*iStarUSA BPN-350V2-SS 5in3 cages (fans removed), 2*WD30EFRX, WD20EARX, 2*WD20EARS, 2TB Samsung HD204, 1TB Hitachi Deskstar 5K1000 cache. Powered through an APC RS 1200G . BRiT Hero Member Posts: 4689 (?°?°)? Re: Multi_Zone_Error_Rate (again) « Reply #1 on: March 30, 2011, 02:29:18 PM » Once again, you're reading the SMART report incorrectly. You need to look at the Normalized Current Value and Normalized Threshold Value for Multi_Zone_Error_Ra
Error Rate (Multi Zone Error Rate) - Attribute information Attribute Name: Write Error Rate (Multi Zone Error Rate) Attribute ID: 200 Attribute meaning: Write data errors rate. This attribute indicates the total number of errors found http://www.ariolic.com/activesmart/smart-attributes/write-error-rate.html when writing a sector. The higher the raw value, the worse the disk surface condition and/or mechanical subsystem is. Critical: Hard drives that support this attribute: Samsung, Seagate, IBM (Hitachi), Fujitsu, Maxtor, WD (Western Digital) Software that supports this attribute: ActiveSMART, by Ariolic Software Download ActiveSMART and monitor S.M.A.R.T. attributesClick here to learn more about ActiveSMART What is the S.M.A.R.T. attribute?The S.M.A.R.T. attributes error rate are specific properties (parameters) of various parts of a disk. S.M.A.R.T. uses attributes to monitor the disk condition and to analyze its reliability (e.g.: the "Temperature" attribute indicates the temperature of the hard disk, the "Power-On Hours" attribute indicates the count of hours in a power-on state, etc.) Various manufacturers may use different sets of attributes. Want to protect your hard drive from multi zone error a sudden breakdown?Modern hard disks support a self-monitoring technology called S.M.A.R.T (Self-Monitoring, Analysis and Reporting Technology). This technology allows you to monitor the important parts of hard drives, warning you if their condition is getting worse and data loss is possible. However, in order to use this information, you will need special software which can collect and process it. Active SMART is intended for just this purpose.Install Active SMART to protect your HDDs and the data stored on them. Click here to learn more about Active SMART Related articlesS.M.A.R.T. technology description What do I do if a S.M.A.R.T. failure happens? HDD temperature check Hard drive SMART status HDD SMART monitor utility S.M.A.R.T. attributes listed in the Active SMART attribute definitions list Raw Read Error Rate Througput Performance Spin Up Time Start/Stop Count Reallocated Sector Count Read Channel Margin Seek Error Rate Seek Time Performance Power On Hours Count Spin Retry Count Recalibration Retries Device Power Cycle Count Soft Read Error Rate G-Sense Error Rate Power-Off Retract Cycle Load/Unload Cycle Count Temperature Reallocation Events Count Current Pending Sector Count Uncorrectable Sector Count UltraDMA CRC Error Rate Write Error Rat