Look how huge is the system storage:
Is anyone having the same problem than me? I do not konw why this is happening.
MacBook Pro TouchBar and Touch ID, macOS High Sierra (10.13), 13", 1TB SSD, 16GB RAM, 3,3 GHz
I noticed that my disk space was being over ran by SYSTEMs Data (on MacOS HighSierra). I never had this issue in previous OS versions, but this was nearly half my storage!!!
Not to worry as there is a solution below:
I ran MacPaw's CleanMyMac Pro, but it only aleviated 9.91GB of space. That means theres something else thats eating away at this OS.
I kept digging and found this post. JamBeats mentioned that TimeMachine is storing snapshots on the local disk. I looked into it and found that I had a couple snap shots on my disk.
Code:
sudo tmutil listlocalsnapshots /
So I preceded to delete the snapshots on my local disk
Code:
tmutil deletelocalsnapshots <timestamp>
Once all these snapshots were deleted. I reviewed my Storage Disk and found it at 75.02GB in use.
This Fixed my Problem.
Thanks Everyone!
I had this problem and Apple Support spent weeks on it and didn't get anywhere. I didn't have a problem with time machine files at all and was facing a complete reinstall when I came across a thread on another site. Someone there suggested unmounting any unused volumes that had not been ejected properly. (I did it a long-winded way, but someone else suggested the following is the way to do it correctly:
diskutil unmount /Volumes/Untitled.
Unmounting the volumes solved the problem for me instantly and it hasn't come back.
Probably a bit late but it seems like everyone has different problems, so thought I'd add what mine was, might help someone. I use Xcode a lot to build versions of the apps I'm testing in work. Each build added to the System Storage. I went to Users > <kramnadroj> > Library > Developer > Xcode and deleted everything from within the folder iOS DeviceSupport. There were loads of folders named after each iOS build (e.g. 11.2.1, etc.). Deleting all these freed up my storage from 90GB to 20GB. Hope this helps someone.
High sierra is a huge "cloud sync" os, but cloud actually means cached locally,
in the finder click Go, hold down the option key and you will see Library appear, go into library and look for a folder called Caches, command J and select calculate all sizes, give it a few mins to get the sizes of the directory,
if its large (normal size is 1-3gb) download and run onyx from titanium software, its free, and will clean you right up safely. install it ,go to "cleaning" , then the "user" tab, and select Execute. takes a few mins, then reboot. your good to go,
you can go through the other options of system/internet/fonts/logs/etc and let it clean you back up to a working fast Apple again. theres also a maintenance tab that allows you to clean things up a little further. and its safe, trusted and free, heres a link to the source page, choose the version for your OS version.
This worked great. Thank you.
Hi What exactly did you do? Thanks!
Hi - what exactly did you do to solve the issue? Thanks.
Thank you this worked, I had one time machine backup.. went from 84GB system to 30GB!
Thanks again!
Read the following thread and you will see the instructions given to me.
High Sierra System Files eating up 400gb of space ... what gives?? | MacRumors Forums
macOS High Sierra – Huge System Storage
