There are several methods to find all storage devices. Let’s look at some examples: /dev/hd, /dev/sd, /dev/vd, /dev/nst*, /dev/sg*, /dev/twe, and so on. If there are no issues, you will see a message that says, 'Operation Successful' or 'Disk verified.In the rest of this tutorial, we need to know which device files identify our disks and their partitions. All you will need to do next is click the 'Repair Disk' button. Repairing a hard drive on macOS is as easy as checking it. Your Mac will then run a series of checks on the hard drive and output errors and necessary repairs in a text box in the center of the app. This will run a test that looks similar to the chkdsk utility in Windows. With the Disk Utility app open, select the HDD you wish to check, then click the 'First aid' tab. A status of 'Failing' means that the drive needs to be replaced immediately and is at risk of failing. status of 'Verified' means everything is working accordingly. Inside Disk Utility, you will see an overview of all your local hard drives.ĭisplayed in the overview will be various information about your device, including its S.M.A.R.T. TO get started, launch Disk Utility from the Applications/Utilities folder on your Mac by default. Using a built-in app called Disk Utility, Mac users can identify errors occurring in their hard drive, check S.M.A.R.T. No further action is required.' followed by some statistics of what the check tested. If everything is in working order, you should see: 'Windows has scanned the file system and found no problems. At the end, there will be a summary of the checks' results. Each stage will output a small amount of data you can look into if you have further issues. This command checks in three stages: examining file system structure, examining file name linkage, and examining security descriptors. Much more information will be displayed than with the S.M.A.R.T. Once the new Command Prompt window opens, you can then type 'chkdsk' and hit enter. Type 'cmd' into the search bar as before-but this time don't hit enter, instead right-click on 'Command Prompt' and select 'Run as Administrator.' A more advanced command you can use to perform a hard drive health check in Windows is 'chkdsk.' Similar to the command above, you must first open Command Prompt, but this time you will need to do so as an administrator.

Drive health checker