HD Full (seems almost fully used by System or iCloud)

Problem solved 🙂

Logged out of iCloud on my macbook pro without keeping copies of iCloud files (this apparently automatically clears the data stored in the local Library) Then logged into iCloud again with a "clean" SSD and no more critical disk messages.

Thanks Kappy and Bob for the useful info and comments that led me to find the solution. 🙂

Thanks again for the help

I installed OmniDiskSweeper and sized the full HD. (SSD 500GB)

Largest part of the disk is occupied by files residing in my library and also are stored on iCloud, the largest part are all the pictures and movies from some holidays that i copied to my local NAS. Seems that all copied files are now physically stored on my SSD 500GB drive in 'Users>'me'>Library>...', in iCloud storage and on my NAS.

Completed a small "test" by deleting one of the maps in the library folder (using omnidisksweeper) and checked the content on iCloud. Unfortunately when i delete the map residing in the Library it also gets deleted in iCloud (double checked it via my iPad)

Seems to me that the automated optimisation of iCloud storage is not properly managing shared storage. (???)

I have 2TB of iCloud storage (just about 770GB actually used) but it seems that once a file 'passes' via my macbook to 'some destination' or files are viewed on the macbook a local version is stored. (in the hidden library)

It does not make sense to me (or better 'i don't understand' how things are managed)

At least the problem is identified, only need to find a way to 'unload' this (to my point of view) garbage on my SSD.

The sole reason for purchasing iCloud storage is to store excessive data and provide sufficient space on my SSD to use for daily operations. Now it seems i am running into the capacity limit of the macbook due to a bunch of crap stored i a hidden map. (as long as i have an internet connection i can get to my iCloud storage so there is no need to store it "double")

Thank you for the information.

My 500GB HD actually seems to be occupied for 481GB (so nearly "full")

I was trying to determine the size of my "library" (as found in some posts that the problem might be found in that area)

After a long time i finally got the result for "Library" and unfortunately this seems to be the area the problem resides.

To my understanding 399GB is on disk and the total size seems to be about the size of my iCloud storage.

Could this indicate that a large number of files is actually "on" my HD AND in my iCloud storage?

(I recently copied a large number of holiday pictures and videos from iCloud storage to a local NAS)

There is next to nothing in the home folder some i will not save any storage capacity.

My goal is to remove garbage stored on the SSD, it appears most of my SSD is occupied with files allready stored on iCloud. I don’t need the copy of files stored on the drive. Meanwhile my internal drive has reached a critical status!

Using less than 50GB of required data on a 500GB drive should not lead to critical storage messages!

Hi Bob,

Then please explain how 2TB of purchased storage capacity (with little less than 800GB used) is stored on a device with 500GB internal storage. To me your statement “that is the way iCloud works” does not make any sence (at least i don’t understand the maths behind that ’normal‘ behavior)