what the meaning of "others volumes in container"?

To APFS (Apple's new File System) a physical drive is a container and a container may have multiple volumes. These volumes would include the container you see as your hard drive in Finder as well as hidden volumes including preboot, recovery, VM, and possibly others depending on which operating system you are using. (Currently Mojave and Catalina can be formatted as APFS.)

atina1808 wrote:

my storages spaces was taken by the title "others volumes in container" what's that means?

How to free up storage space on your Mac - Apple Support

https://support.apple.com/en-us/HT206996

User tip: "Other and What Can I Do About It ?"

https://discussions.apple.com/docs/DOC-5142

Try something like OmniDiskSweeper for a GUI to get a good look at itemized file size and location:

OmniDiskSweeper http://www.omnigroup.com/more

others for example—

Disk Inventory X: http://www.derlien.com/ (takes forever to load up.)

Grand Perspective: http://grandperspectiv.sourceforge.net/

Or alternatively from the Terminal.app:

File size, and missing GB— list the items in the home folder with the sizes, including invisible items.

sudo du -h -d 1 ~/

File size, and missing GB —will list the items in root with the sizes, including invisible items.

sudo du -h -d 1 /

The Other category I believe includes the local snapshots that are created but are purgeable as space is needed.

The more accurate way of determining the space used on your hard drive is to open the boot drive on the desktop and to enable Calculate all sizes in the View Options for that folder.

However, setting that option for all folders on your hard drive will degrade system performance (the Applications folder has been calculating for over 30 minutes without any result:

So, should I still not try to delete that "Other Volume" if that other volume takes up more than HALF of the disk space?

What the **** are they saving that takes half of my HD?

I cannot find a way to remove this and am running out of space.

Any other suggestions or help to get around this?

I've formatted the drive and reinstalled the OS from scratch, but there is still half of the drive eaten up by this "Other Volumes"

Catalina created a number of volumes which are required for your Mac to work properly. You should not delete any of the volumes in the container unless you created them yourself.