Mac Mini – How Many Hard Drives Are Installed?

disk-utilityhard drivemac-minimountrecovery

I just purchased a Mac mini and the seller assures me that there are two 1 TB hard drives inside, with a total storage space of 2 TB (picture from the listing).

At first, I was under the impression that there was a second drive without an OS and that the partitioning was done on that (Windows-format?) drive. However, after erasing the accessible drive following Apple's instructions, and restoring my data with Target mode, I do not see a second drive listed anywhere:

  • If I start the computer pressing ALT I see
    this.
  • In the Storage tab I see
    this.
  • In Recovery mode the Disk
    Utility lists this.
  • The diskutil list command returns this in
    Recovery mode (more images).

I really, really don't want to have to go through this process to figure out if the seller is saying the truth about there being two drives inside, since it might prevent me from returning it, but I'd like to know if what I bought matches the item description.

Possible hypotheses:

  • there is no second drive
  • there might be a second drive, but badly connected/wired in so undetectable
  • there is a second drive that is blank / oddly formatted / undetectable

How can I know if there is a second drive in the Mac mini?

Best Answer

Possibilities are:

  • There is no second drive
  • There is a second drive that is undetectable because faulty or badly connected

You can find out which it is by simply opening the black plastic bottom and looking, no "process" required.

enter image description here

In the picture of what you will see when opening the back, I have indicated the two connectors for the two possible disks with red arrows. One will already be occupied by the disk we know is in the Mac mini. If the other one is also occupied, then it is the second alternative: there is a disk but it is faulty or the connection is faulty. If it is unoccupied there is no second disk inside.