Hi,
I've navigated to the Disk Utility >> Right Click on Disk >> Click Get Info screen.
On the information page I see S.M.A.R.T. status = 'Not Supported'.
I don't know if I need to worry or not.
What is your comments? Why it is showing my internal drive S.M.A.R.T. status like that?
MacBook Pro 13", macOS 10.14
Not all Apple SSDs support SMART. Not even all third party SSDs support SMART. You will also see the same thing if you examine an external USB drive even if the drive does support SMART because macOS doesn't include the necessary driver to allow SMART communication with a USB drive.
Plus you are viewing "disk1" which is typically the mounted volume rather than the physical drive at least when booting from an internal drive (unless this is a Fusion Drive setup). Even if the drive supports SMART macOS and Disk Utility do not really use SMART except to alert on extreme failure (most drives become unusable long before this happens).
A third party app such as DriveDX can provide some early warnings when the monitored SMART Attributes indicate a downward change or potential problem with a drive. While DriveDX does a good job alerting users to the most common types of hard drive failures(bad blocks), these types of apps usually are not as reliable with SSDs. I manually monitor the actual SMART Attributes of SSDs, but this takes practice to understand what is normal and what is not.
Not all Apple SSDs support SMART. Not even all third party SSDs support SMART. You will also see the same thing if you examine an external USB drive even if the drive does support SMART because macOS doesn't include the necessary driver to allow SMART communication with a USB drive.
Plus you are viewing "disk1" which is typically the mounted volume rather than the physical drive at least when booting from an internal drive (unless this is a Fusion Drive setup). Even if the drive supports SMART macOS and Disk Utility do not really use SMART except to alert on extreme failure (most drives become unusable long before this happens).
A third party app such as DriveDX can provide some early warnings when the monitored SMART Attributes indicate a downward change or potential problem with a drive. While DriveDX does a good job alerting users to the most common types of hard drive failures(bad blocks), these types of apps usually are not as reliable with SSDs. I manually monitor the actual SMART Attributes of SSDs, but this takes practice to understand what is normal and what is not.
Thanks man, it was really helpful 👍🏼
S.M.A.R.T. Status is: "Unsupported" on my Internal Hard Drive
