Every few days now, I clear 1-2 GB from my hard drive and still get this alert of low disk space on the desktop:
Your disk is almost full. Save space by optimising storage
And in the Terminal:
Your disk space is critically low. Older terminal scrollback contents may be automatically discarded to conserve VM backing store.:
I click on
Manage from the desktop and see that system storage is taking 84 GB on a 128 GB SSD drive:
OmniDiskSweeper fails to find the large files: the total of files is about 43 GB out of 110 GB used:
The alternative is to keep moving files to an external drive and clear disk space until there is nothing left and I reinstall.
How can I find the culprit of runaway system storage?
Note: A few years ago I asked Terminal command to identify and clear runaway system storage and solved it with OmniDiskSweeper. Now I have the same issue and cannot find the culprit. I also know about How can I figure out what's slowly eating my drive space? and tried some of the tools there.
I ran this
du command on
/Volumes/Macintosh HD, and here is the list of folders with over 2 GB.
Colossus is the name of my hard drive. Nothing catches my eye from this list:
$ sudo du -h | sort -h ... 2.0G ./Volumes/Colossus/Library/Application Support/MobileSync 2.0G ./Volumes/Colossus/Library/Application Support/MobileSync/Backup 2.1G ./Users/mmorin/Library/Application Support/MobileSync 2.1G ./Users/mmorin/Library/Application Support/MobileSync/Backup 2.1G ./Users/mmorin/Music/iTunes/iTunes Media 2.2G ./Applications/iMovie.app 2.2G ./Applications/iMovie.app/Contents 2.2G ./Users/mmorin/reference 2.3G ./Users/mmorin/Music 2.3G ./Users/mmorin/Music/iTunes 2.3G ./private/var/db 2.4G ./Users/mmorin/Library/Caches/Homebrew 2.5G ./Volumes/Colossus/Library/Containers 2.6G ./usr/local/texlive/2020/texmf-dist/fonts 2.7G ./usr/local/texlive/2020/texmf-dist/doc 3.0G ./private/var/folders 3.0G ./private/var/vm 3.2G ./Library/Application Support/Adobe 3.2G ./Users/mmorin/Maildir/Cantab/Deleted Items 3.2G ./Users/mmorin/Maildir/Cantab/Deleted Items/cur 3.2G ./Volumes/Colossus/Library/Messages 3.6G ./Users/mmorin/Library/Caches 4.4G ./Library/Application Support 4.4G ./Volumes/Colossus/Library/Application Support 4.5G ./Users/mmorin/Maildir/Cantab 5.2G ./usr/local/Cellar 5.4G ./Users/mmorin/Library/Application Support 6.2G ./Users/mmorin/Maildir 6.2G ./usr/local/texlive/2020/texmf-dist 6.5G ./usr/local/texlive 6.5G ./usr/local/texlive/2020 6.7G ./Library 6.8G ./System/Library 6.9G ./System 8.9G ./private/var 9.0G ./private 9.1G ./.Spotlight-V100 9.1G ./.Spotlight-V100/Store-V2 9.1G ./.Spotlight-V100/Store-V2/CA9AE856-FB94-4765-9028-38E04BEC9683 9.7G ./Applications 13G ./Users/mmorin/Library 13G ./Volumes/Colossus/Library 15G ./Volumes 15G ./Volumes/Colossus 16G ./usr 16G ./usr/local 29G ./Users 29G ./Users/mmorin
Disk Utility on the container disk shows this: