Available storage from disk utilities

[hajime]

Hi, I went to disk utilities and found three volumns listed on the left: Macintosh HD, Macintosh HD - Data, Bootcamp. What is Macintosh HD - Data? I don't believe I run out of storage on this new machine so quickly and I have only 18.59GB available for use.


Anyway, under Macintosh HD, I have:

Capacity: 700GB
Available 21.97GB (3.39GB page possible)
Used: 10.97
In the bar, it says: Used 10.97GB, other volumns: 670.44GB, Free: 18.59GB

Under Macintosh HD - Data, I have:

Capacity: 700GB
Available 21.97GB (3.39GB page possible)
Used: 668.59GB
In the bar, it says used: 668.58GB, other columns: 12.84GB, Free: 18.59GB

Bootcamp
Capacity: 300.24GB
Available: 244.38GB
Used: 55.86GB
In the bar, it says: used 55.86GB, Free: 244.38GB

 

[Weaselboy]

What is Macintosh HD - Data?

Why does the macOS Catalina installer create a hidden Data volume on your Mac?

macOS Catalina's installer splits your Mac into Data and System folders, to help enhance data security. Understand why in this iDB explainer.

www.idownloadblog.com

That was done during the Catalina install. The OS is on one volume and your data on another. Here is an article that explains.