Disk Utility Indicates Drive Failure

[Average Pro]

I recently erased all of the information from a RAID 0. The Disk Utility shows that one of the drives failed (see attached). I manually erased the drives by dragging everything within to the garbage can and then ran the First Aid (within Disk Utility). This is when I first noticed the failure . I plan to format both drives and then rebuild the RAID 0. The drives appear to be working fine. Is this because one was working and the other not? Is this in indication that the failed drive is on the way out?

Any tips or suggestions would be greatly appreciated.

Tech Specs:
6TB WD Black
macOS Mojave V 10.14.2
MacPro 2013

Regards

 

[keysofanxiety]

I'm not familiar with what that error means within the RAID Utility, however you could check the SMART data of the drives through SMART Utility: https://cloudfront.volitans-software.com/smartutility324.zip

This will definitely indicate if one, or both, of the drives are physically failing and need to be replaced.

 

[chrfr]

I recently erased all of the information from a RAID 0. The Disk Utility shows that one of the drives failed (see attached). I manually erased the drives by dragging everything within to the garbage can and then ran the First Aid (within Disk Utility). This is when I first noticed the failure . I plan to format both drives and then rebuild the RAID 0. The drives appear to be working fine. Is this because one was working and the other not? Is this in indication that the failed drive is on the way out?

Any tips or suggestions would be greatly appreciated.

Tech Specs:
6TB WD Black
macOS Mojave V 10.14.2
MacPro 2013

Regards

View attachment 820250

You didn't have RAID 0, you had RAID 1. You haven't lost any data because the 2 drives were mirrored, and now one has failed, which means you need to replace that one disk. You now have no redundancy, which is what RAID 1 is for.

 

[Average Pro]

Your response makes perfect sense, because if I had RAID 0, all of the data would have been gone and I would have seen nothing. I removed the RAID, formatted the discs, ran first aid and set them up as a RAID 1 again. I know they're not more than 5 years old so when I get a failure again, I'll return it to WD under warranty.

Thank you for your assistance.

You didn't have RAID 0, you had RAID 1. You haven't lost any data because the 2 drives were mirrored, and now one has failed, which means you need to replace that one disk. You now have no redundancy, which is what RAID 1 is for.