On the main Disk Drill screen, you will see a list of all the available disks and partitions. Here is an explanation for some of the symbols you might see.
Information Button (i)
The small “i” in a circle under the name is the Information button. You can click on this to get detailed information about each disk, including the type of file system, capacity of the volume, whether data protection is enabled, and S.M.A.R.T. details. The color of the information button indicates the S.M.A.R.T. status of the volume:
- Green means that S.M.A.R.T. status is active and no problems are detected.
- Red means S.M.A.R.T. is active and bad sectors or other S.M.A.R.T. issues have been detected.
- Orange means S.M.A.R.T. Monitoring is not active for this volume.
Disk Free Space
The small rectangle under the volume name indicates how much free space a volume has. The colors indicate:
- Green means there is plenty of free space available.
- Blue means about 50% of the volume is free space.
- Red means there is very little free space left.
- Padlock next to name means that the disk has been mounted as read-only.
- Shield on the disk icon means the disk is protected by Recovery Vault and/or Guaranteed Recovery.