It was not clicking loudly though, like a drive that has already gone bad. After tightening the connections to the hard drive, it stopped clicking and I was able to access the data again. I have started to move files off of the drive, but I think this drive might still be in good health.
I didn't find any data corruption and I haven't had any trouble accessing any files. I have never had an SATA drive fail before so I'm thinking that it could have just been the loose connections that was causing the problem.
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If a HD starts to give you physical hints about an upcoming failure, no software will help. Yes, SMART exists and things like smartctl can read its results for you, but you shouldn't bet on it. SMART can be useful for detecting things like high temperatures or bad sectors, but if your HD starts to click or does not start up during the first try, it's time to
When HD decides to fail, it will do it without a previous warning and Murphy's law says that the failure will happen during the most unwanted moment. So be prepared and backup & replace the disk NOW rather than waiting for the catastrophe.
Try using SpinRite (It isn't free) but I have used many, many tools. Most tools make more damage than help, when I say damage, I mean "not taking good care of your information". This tool will check your drive and fix the bad sectors, while moving your information to secure sectors.It also is a preventing method for hard disk catastrophes
Though it states "GOOD" (Samsung HD103UJ). In output of smartctl I saw log with errors and you can see them under 187 (uncorrected errors) which indicates how much data I really lost. Seeing 7 (reallocated sectors) being at 0 is a bit unexpected for me.
Besides the already mentioned SMART status it might be important to mention that modern HDDs tend not to fail gracefully. Often from one day to the next you only hear a clicking sound or can't access the disk at all. So while your problem could also be caused by a loose cable be always prepared by having regular backups on a different disk.
Test environment: Permanent Live Ubuntu 16.04 USB made based on the thread How to Make Persistent Live Ubuntu of 16.04?Connect your HDD on your computer. Boot to the live Ubuntu. The GUI program gnome-disks which shows also bad-sectors and where you can do benchmarking of the discs and its different sectors. It is similar to the tools of smartmontools for sudo smartctl -a .... Example output of benchmarking my 500 GB disc where you see the read/write speed degenerates in time under heavy load
HDDScan is a very handy/useful utility for scanning HDDs. It'll show any error most likely. However, you should also try vendor specific tools. (If you tell me your HDD's manufacturers (and model) I can link them here.)
-cc This option employs the use of badblocks(8) program to do a read-only scan for bad blocks. If there are any bad blocks they will be added to bad block "file" (inode) to prevent their use. If twice, then the bad block scan will be done using a non-destructive read-write test.
Also, deriving from the model of the HDD, I would recommend downloading and using the Hitachi Drive Fitness Test, which should work with the most HGST-legacy HDDs: (need to build a bootable DOS volume, read the doc)
The ddrescue utility is highly recommended for this task: ddrescue has a command line interface similar to the Linux dd utility but works differently under the hood. It is specifically desiged for data recovery and so will give you the best chance of recovering the most data from a failing drive.
Hard Disk Sentinel (HDSentinel) is a multi-OS SSD and HDD monitoring and analysis software. Its goal is to find, test, diagnose and repair hard disk drive problems, report and display SSD and HDD health, performance degradations and failures. Hard Disk Sentinel gives complete textual description, tips and displays/reports the most comprehensive information about the hard disks and solid state disks inside the computer and in external enclosures (USB hard disks / e-SATA hard disks). Many different alerts and report options are available to ensure maximum safety of your valuable data.
No need to use separate tools to verify internal hard disks, external hard disks, SSDs, hybrid disk drives (SSHD), disks in RAID arrays and Network Attached Storage (NAS) drives as these are all included in a single software. In addition Hard Disk Sentinel Pro detects and displays status and S.M.A.R.T. information about LTO tape drives and appropriate industrial (micro) SD cards and eMMC devices too. See the How to: monitor Network Attached Storage (NAS) status for information about hard disk monitoring in Network Attached Storage (NAS) devices.
Hard Disk Sentinel monitors hard disk drive / HDD status including health, temperature and all S.M.A.R.T. (Self-Monitoring, Analysis and Reporting Technology) values for all hard disks. Also it measures the disk transfer speed in real time which can be used as a benchmark or to detect possible hard disk failures, performance degradations. How to check hard drive health
HDSentinel is the perfect data protection solution: it can be effectively used to prevent HDD failure and SSD / HDD data loss because it has the most sensitive disk health rating system which is extremely sensitive to disk problems. This way even a small HDD problem can't be missed. The Professional version has scheduled and automatic (on-problem) disk backup options to prevent data loss caused by not only failure but by malware or accidental delete also.
Hard Disk Sentinel runs in the background and verifies SSD / HDD health status by inspecting the SMART status of the disk(s). If an error is found or unexpected behaviour is detected, it warns the user about the current situation and also can perform appropriate actions (for example, start an automatic backup).
Usually, hard disk health status may slowly decline, from day to day. The SMART monitoring technology can predict HDD failure by examining the critical values of the disk drive. Compared to other software, Hard Disk Sentinel detects and reports every disk problem. It is much more sensitive to disk failures and can display better and more detailed information about hard disk expected life and the problems found (if any). This is a more sophisticated way to predict failures than the "traditional" method: checking S.M.A.R.T. attribute thresholds and values only. For more information, please read how hard disk S.M.A.R.T. works and why Hard Disk Sentinel is different. Signs of a hard drive failure
The software displays the current hard disk temperature and logs maximum and average HDD temperatures. This may be used to check the maximum temperature under high hard disk load. For the importance of the hard disk operating temperature, see the Frequently Asked Questions. See the list of Features of Hard Disk Sentinel Professional or our products for hard disk monitoring.
If you are using a computer equipped with at least one hard disk or solid state disk and you want to ensure that your data will be available any time, then the answer is YES. Hard Disk Sentinel is especially designed to you if
I had a bad experience on an old Dell computer where shortly after installing Ubuntu on it, the hard drive failed due to excessive loading/unloading cycles. What is the best way to check the health of my hard drive in Ubuntu? Can it be done from the command line?
There is also a utility called badblocks, and another called shred. Both of these utilities can perform read/write operations on your write drive that can be used to make sure that a drive is safe for use. Personally, if I saw an error in either of these I'd replace the drive.
They are very slow and can take some time to complete, but can give you a an idea of their health. Also, since they are writing you'll lose the data on the drive and should be run from live cd as suggested by caesay. I've been lugging around SystemRescueCd lately.
If your device is making any abnormal noises stop immediately, do not try to turn on the device and contact a professional data recovery company.
DigiLab Data Recovery Services is recommended and approved by the developers of the HDDScan utility.
Report contains information about drive's performance and "health" described in attributes. Green icon means - attribute values are normal. Yellow icon marks important attributes which may indicate HDD's malfunction. Red icon indicates abnormal attribute values.
Below is an additional resource alternatives to data recovery services providers.
Founded in 2007, Secure Data Recovery Services is one of the leading companies that offer professional data recovery services. They provide service for data recovery, RAID repair, hard drive repair, computer forensics, and many other media services in their safe and clean room. They have experienced engineers, data repair facilities and a certified Class 10 ISO 4 Classroom.
If your device is making any abnormal noises (Good resource of bad sounds can be found here).
I would recommend installing smartmon ( ) to your machine this is some software which can check the health of your disks otherwise its going to be checking /var/log/messages or /var/log/syslog for any mentions of scsi errors
SMART monitoring is a good way. As root, smartctl -a /dev/hda, where hda is the drive you want... could be hdb, sda, etc. Also recommend setting your email address in /etc/aliases as the person who should get root's mail.
I'm having trouble deleting a file off the HDD in the Airport Time Capsule -- I use the extra space to store files then back up to the Cloud. It is taking forever to delete or move to trash a 100G file. I checked my Mac Pro's HDD to find errors that Disk Utlity was able to fix. Unfortunately, Disk Utility only works with HDD's connected by wire to my notebook; it can't see the drive in the Tme Capsule. And I have no ethernet port on the notebook. 152ee80cbc
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