What port is my bad drive connected to?

[KristofferD]

I've a motherboard with 6 hard drives connected to it, now it's time to replace one of them after ~3 years of usage.
I know it's drive ada2 but I haven't marked the drives in any easy way so now I wonder if it's any easy way to find out what drive is the faulty one / which port it's connected to?

It's running raidz2 so I can pull one drive and hope it's the right one or have to rebuild it again and again until I find the right one.

 

[sretalla]

Look at the disks under the storage menu in the GUI.

You should be able to see the serial number for your failed disk there... you will find the serial number printed on the drive.