

Set a volume scheme using the drop-down menu of the same name, or use the "+" and "-" buttons below the Volume Scheme area to add or remove partitions from its list. If you clicked on a partition name instead of a volume name in the list, the tab won't appear. Even a drive you format as one unified piece of storage space contains a partition equal in size to the addressable size of the mechanism.Ĭlick on the "Partition" tab at the top of the Disk Utility interface. Note that drive names appear flush left in the list, with the names of their partitions indented below them in alphabetical order.

Look in the list on the left side of the Disk Utility interface for the name of the drive you want to partition, and click on the applicable listing.
