S.M.A.R.T. (Self-Monitoring Analysis and Reporting Technology) is a monitoring system for computer hard disk drives to detect and report on various indicators of reliability, in the hope of anticipating failures.

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Can a faulty RAM cause a Ultra DMA CRC Error?

I just upgraded my laptop's RAM yesterday and some weird things are happening because the memory module I bought on my local computer store is defective. Since the RAM isn't working properly, ...
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1answer
59 views

SMART: Brand new Western Digital hard-disk showing very high load cycle count

My brand new "WDC WD10EZRX" 1TB Green Hard-disk, SMART log is showing very high load cycle count and it keeps increasing at high rate. What should I do ? Please help me. Edit: Finally I got the ...
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22 views

S.M.A.R.T : What's the difference between “Start/Stop cycle count” and “Load/Unload cycle count”?

Q1. What is the difference between "Start/Stop cycle count" and "Load/Unload cycle count" ? Q2. What happen to the hard-disk when a computer is put to sleep mode, does the spindle moter stops spinning ...
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How to access S.M.A.R.T. values when using RAID and Intel Matrix Storage?

We have a RAID 5 array using Intel Matrix Storage (i.e. a motherboard based RAID). One of the hard drives has started to make a grinding noise, and the array is currently rebuilding. We'd like to ...
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2answers
501 views

Resetting “HDD Warning???” with Zalman ZM-VE400 external case

Whenever I turn on (or plug in) the Zalman ZM-VE400 I have, it shows HDD Warning???. Sometimes briefly, sometimes until the Menu button is pressed. The case contains a SSD drive and as far as I ...
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395 views

Files disappearing, errors during linux boot

On my laptop I've got - Windows 7 (NTFS), Ubuntu 10.10 x64 (ext4) and a few NTFS partitions which are also mounted under Ubuntu. 1.Today when I opened console text like this appeared: "I don't know ...
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1answer
34 views

possible disk problems - nothing in SMART

I keep getting these IO errors: Feb 22 07:08:19 kernel: [70724.773260] sd 0:0:0:0: [sda] CDB: Read(10): 28 00 50 17 f5 d8 00 00 08 00 Feb 22 07:08:19 kernel: [70724.773344] ata1: EH complete Feb 22 ...
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11 views

Is Power Off Retract count relevant for SSD

Is Power-ff retract count relevant for SSDs? I have tested my SSD under various scenarios, hard power removal and kernel panic, but the attribute value does not change. Does anyone have any idea?
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28 views

Resetting HDD SMART data

I have a USB based holder that has slots for SATA and IDE drives. It has a button to facilitate low level copies. Having cloned a drive I was amazed to find SMART data had been transferred ... can ...
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26 views

HDD Current_Pending_Sector attribute going up and down

I have Western Digital Caviar Black drive (model WD2002FAEX-007BA0). System is running Linux Mint 14. Filesystem on drive ext4. Recently I've got some i/o errors on one of the files. Then I've ...
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1answer
16 views

SMART attributes have large values

I have noticed the Reallocation Event Count with my internal hard drive with a data value and a warning about a year ago and it has been increasing ever since. I have also noticed the Raw read error ...
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56 views

How can Reallocation Event Count be less than Reallocated Sector Count?

I have 5+ years old 750 Samsung SpinPoint F1 HD753LJ and S.M.A.R.T reports very strange values. For a couple of years Reallocation Event Count was 2 and Reallocated Sector Count was 3, but about 5 ...
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1answer
50 views

Are Soft Bad Sectors recorded in a drive's S.M.A.R.T. data?

Yesterday I was faced with a soft bad sector when I decided to run chkdsk.exe in Windows all by myself. I have suspicions that it was caused by a recent Intel Rapid Storage Technology driver update. I ...
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1answer
270 views

Synology: SMART status is abnormal but no errors shown

I have a Synology DS509+ NAS that is showing an "Abnormal" S.M.A.R.T. status for one of its drives: However, there seems to be nothing wrong with the S.M.A.R.T. test results: So, what's going ...
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2answers
101 views

How often to run SMART tests on hard drive?

For a hard drive with SMART, how often should the quick test be run, and how often should the full test be run? Should the tests be run more frequently as the drive gets older? Does the manufacturer ...
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3answers
260 views

SMART data not available/readable on a modern computer

I have administration of a computer - Compaq CQ1-2025 - that has not been hardware modified in any way. According to specifications it has a 320 GB SATA hard disk in it. When I ran SpinRite disk ...
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27 views

WD NAS vs hd sentinel on disk health

My Western Digital My Book Live II, started failing some time ago, with a "Drive A Failed" message on the Web Interface monitor tool. After replacing Drive A, with a new one, drive B failed also a ...
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2answers
703 views

Unable to Write Zeros to Bad Sectors/Hard Disk Not Counting Reallocated Sectors

I have a drive that is reporting that the current pending sectors is "45". I have used badblocks to identify the sectors and I have been trying to write zeros to them with dd. From what I understand, ...
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2answers
6k views

What are reasons for “SMART Failure predicted on hard disk” error?

My laptop is shows "SMART Failure predicted on Hard Disk 0: SAMSUNG HM640JJ" error on boot with windows 7 OS. While surfing, I get a response as my HDD is running out. So get backup files as quickly. ...
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2answers
264 views

Where is S.M.A.R.T. data stored on a HDD?

The S.M.A.R.T. attributes are attributes that a HDD keeps about its health and performance. I know that the MBR is stored at C,H,S (0,0,1) which leaves no free disc space for the drive to function. ...
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1answer
69 views

Western Digital 1TB Drive recognized as 32MB

this is really strange - I've got this 1TB Western Digital HDD and multiple machines (including an USB3-SATA Bridge) detect this HDD with only 32MB capacity. I guess the Harddisk is broken and ripe ...
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1answer
515 views

Is my SSD drive going bad? SMART error

Is there something wrong with my SSD drive ? It's still under warranty so I can replace it ;) SMART Error Log Version: 1 ATA Error Count: 1 CR = Command Register [HEX] FR = Features ...
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1answer
401 views

Why is the temperature so low and airflow temperature so high on my HD?

I have had this same exact SeaGate external 1TB USB2.0 hard drive for a few years. In the past I have been using SeaGate's own diagnostic tool to check the drive for errors but it wouldn't let me see ...
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7answers
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How to force a remap of sectors reported in S.M.A.R.T C5 (Current Pending Sector Count)?

The S.M.A.R.T C5 value of my Samsung HM640JJ Hard Drive (in an HP Pavilion dv6 laptop) is "yellow status = caution" C5 was 10 yesterday, and it's 21 today. C4 (Reallocation Event Count) = 0 and 05 ...
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How to make smartd shut up about one particular offline uncorrectable sector?

I have a disk in a two-disk software RAID-1 for which recently an "offline uncorrectable sector" appeared in the SMART status. 198 Offline_Uncorrectable 0x0030 200 200 000 Old_age ...
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251 views

What might cause an increase in offline uncorrectable and pending sectors counts on an *idle* drive?

I have a Western Digital Elements Desktop USB-connected hard drive. Basically, it's a glorified package for a WD30EZRX drive. I use it to hold system backups (old now, at that), so there's nothing ...
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1answer
150 views

Difference between S.M.A.R.T. error 0x05 (Reallocated sector) and 0xC6 (Uncorrectable sector)

My 2TB external HDD has recently started reporting a very high number of 0xC5 (Pending sectors) errors (Raw value: 309), and just today reported an uncorrectable sector error (Raw value: 1) while the ...
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5answers
20k views

Can I trust a hard drive that has had to reallocate sectors?

I ran this HD utility called CrystalDiskInfo that displays some of the S.M.A.R.T. information on my drives. It is displaying a "Caution" warning on one of my drives because its "Reallocated Sectors ...
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4answers
3k views

Hard drive issues - SpinRite vs. S.M.A.R.T

The Toshiba hard drive in a Sony VAIO laptop went bad. I put in a Western Digital drive (WD1600BEVS-60RST0, firmware v4.01G04) from an HP laptop. I ran SpinRite at level 2 and found some bad sectors, ...
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241 views

SMART ‘Reported Uncorrect’ field

When smartd sends an email about the amount of Offline_Uncorrectable sectors has increased, they do not increase Reallocated_Sector_Ct after manual fix (erasing with dd for example), as one might ...
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77 views

Computer crashes when reading single folder - HDD Pending Sector count is 2

I have a Windows 8 (not 8.1 yet - I've been away for three months) Pro x64 PC with a 120GB Samsung Evo SSD for Windows and the User folders mklink'ed onto my 1TB Samsung HD103SJ. Whenever I try to ...
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1answer
1k views

Howto interpret SMART-Attributes?

I want to estimate the health and the remaining lifetime of my hard drive using SMART (in my case gsmartcontrol). However I don't know how to interpret the attributes. More specifically: Which ...
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1answer
421 views

Western Digital: Sector Relocation Error (code 226)

I have a nearly new WD Green, but warranty is already expired. It was lying on a shelf. I would like to test it before use. The first step I made is running full test using Data Lifeguard Tools. ...
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2answers
732 views

Trying to remove/diagnose single Current_Pending_Sector in S.M.A.R.T. data

I'm in a process of doing a fresh Linux install and before I went to do that I thought that it is a good time to verify HDD health since I can safely overwrite any data on the HDD if needed. First ...
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1answer
63 views

How to determine which partition has badblocks?

I have the following device: Model Family: Western Digital Caviar Green (AF) Device Model: WDC WD15EARS-00MVWB0 Serial Number: WD-WCAZA3607921 LU WWN Device Id: 5 0014ee 2b01eac3e Firmware ...
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1answer
84 views

S.M.A.R.T. error on the drive, how to deal with 80 bad sector? [duplicate]

My system reported a S.M.A.R.T. error on the drive few days ago, Warning: Immediately back-up your data and replace your. I backed up my data, and then tried to see what is the problem, using HDD ...
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2answers
84 views

What is the S.M.A.R.T. page?

I've just listened to Steve Gibson talk about his SpinRite software, on the Security Now podcast episode 336 (transscript). At 33:20 he says: I can show and do show on the SMART page that ...
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138 views

Write-read test reports no error but there're still offline uncorrectable sectors — Is it normal?

I have a 2.5 inch hard drive that once worked in a pretty bad external enclosure. And after I put it back in my computer I saw 14 offline uncorrectable sectors and 12 pending sectors. I did a full ...
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8answers
22k views

What is the easiest method of checking SMART status for your hard drive?

I've seen programs in the past that were able to check the SMART status of a hard disk drive but it wasn't easy for me to find. Also, I think I had to boot into the CD in order to check on it. What is ...
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1answer
885 views

How do I interpret SMART data for SAS disks?

I am in the process of replacing some failing SATA disks with new SAS disks. The raid array that one of the failing disks is part of is in the process of resilvering. As that progresses, I can see ...
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5answers
447 views

Hard disk failure is imminent [duplicate]

I have a seagate 320 GB hdd on my linux machine. From a week, SMART utility has been warning me to backup as the disk failure is imminent. Report failed on the "Bad sectors attribute" which is ...
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3answers
407 views

Possibly a dying hard drive, but reads, writes work - unsure about log entries

I recently received a Linux box having problems with Samba share - first off, couldn't connect, second ls -la showed some I/O error (close to what can be seen below) with no listing. Now, I've fully ...
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2answers
838 views

How to fix high Load_Cycle_Count laptop drive (TOSHIBA MK6006GAH in Vaio TX1XP)?

Hoping someone knows exactly what's going on here. It seems this drive has some combination of aggressive power saving settings and Ubuntu defaults that has massively increased the Load_Cycle_Count ...
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“Last Business Day” smart mailbox for Apple Mail

I have a handy smart mailbox for "Yesterday" with a simple condition Date received - is yesterday However, on Mondays this returns the results from Sunday. I would like to have the last business ...
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7answers
181k views

How can I read my hard drive's SMART status in Windows 7?

Is there a tool, application, gadget or similar which lets me read the S.M.A.R.T. state of my HDDs while using Windows 7? Ideally, it should be something that can monitor my HDD temperature ...
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4answers
2k views

Win7 x64 unresponsive for a minute or so. HD failing?

On a fully updated Win7 x64, every so often the system stalls for a minute or so. This has been going on for a couple months now. By stalling I mean the mouse responds and I can move windows around, ...
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1answer
4k views

HDD health power on count/hours

In this question i checked my HDD health on a drive i had for roughly a year. It has 188 power on count and 896 power on hours. Is this slow or high value for a drive that may be failing? What are ...
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3answers
2k views

Disk health status warning. Should I be alarmed?

I ran HDTunePRO today and saw that my disk has a Current Pending Sector warning: I read in wikipedia that the lower this attribute is the better and that it is a "Potential indicator of imminent ...
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1answer
997 views

HDD health - what do the numbers actually mean?

Defraggler had a little tool that shows the health of the HDD. But I'm unsure what this all means. Could someone explain them, and which values are good and which are bad?
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1answer
438 views

SSD – smartctl – Status

I have a SAMSUNG SSD 830 Series SSD in my MacBook Pro. In my work, I need to analyse huges amounts of data. I have php scripts that extract the data, build csv sheets, then gnuplot generates hundreds ...