

This would indicate that in order to fix this problem, you will want to remove one of these volumes. For example, your two data volumes may have the same size. Now, it appears that, for whatever reason, there is a redundancy. At that time, some users reported having disk volumes like: Starting with macOS Catalina, system files have been separated out into their own disk volume, Macintosh HD, while user data resides in Macintosh HD – Data.Ī similar problem with extra volumes or volumes that couldn’t be unlocked has come up before, when users were upgrading to Catalina.

If everything is as it should be, you should see a volume named Macintosh HD and one named Macintosh HD – Data (assuming you haven’t made changes in the past to your disk’s name or structure).
