hard drivesmart
After searching the solutions in askubuntu, I found that I should replace the HDD, but as I know that SMART test is just for reference, because difference vendors has different standard, it makes me confused.
So, please forgive me for asking the repeated question "do I need to replace my HDD?"
Actually, I have finished the SMART test and it said Overall Assessment failed, in this situation (screen capture attached for your reference), do I need to replace the HDD?
Many thanks!!
You'll see this message when a hard disk's S.M.A.R.T. (Self-Monitoring, Analysis, and Reporting Technology) status begins to report a failure.
Modern disks have a set of tests and benchmarks as part of their S.M.A.R.T. profile and operating systems perform quick tests on them occasionally. When certain tests fall below their specified operating values, this is usually a sign that the disk is getting old and that its performance will likely quickly continue to deteriorate to the point where you suffer data loss or it just packs up and dies.
You can verify this through Disk Utility (sitting in System -> Administration). Find the disk, click SMART Data and you'll see a list of tests. Not all tests are performed automatically so you can manually set it to run a full test cycle but as soon as you see bad sectors or tests that are failing really poorly, the disk is as good as dead.
Obviously data loss is horrible so I can't recommend anything but moving everything off the disk right away. There is nothing to be gained from hanging onto the disk until it pops. It's better to be in control of the situation than have it jump on you when you're not expecting it.
I wouldn't even attempt a low-level format. If it's failing now, it's much more likely to start getting sector corruption in the future. In my mind, it's just not worth the risk.
Note: If it's still under warranty and you send it back, you will almost always (99.999% of times) get a different drive sent back. Diagnosing single drives is much more expensive than just bulk-refitting them. As a result you'll lose all your data in the process so get your data off now.
As I answered a while ago, you can check the SMART status of a disk through Disk Utility... But that's really only a tiny portion of the story.
Your disk is failing a test. Some of the SMART tests aren't too important but you need to check which it is. If it's one of the following, back up, buy another disk, and move everything off and bin the current disk.
It sounds dramatic but if one of those values is beyond its threshold, your drive has a real possibility of suffering some sort of critical failure in the near future. Acting as soon as possible may save you a sudden and rude interruption when you need the drive in the future and it fails.
Best Answer
Install
smartmontools.sudo apt-get install smartmontoolsThen run
sudo smartctl --all /dev/sdX(X = your drive's letter) to get all the data concerning the disk. You will see more detailed information about possible failures.Run
sudo smartctl --test=short /dev/sdXto actually test the drive. If there are failures, the short test will reveal them. If not, replace short with long. This will take longer but it will possibly reveal failures the short one didn't.Any failures reported by those tests are reliable and do mean you have to replace the disk.