How to manage System storage - it is using 219GB out of 250GB

Hello

I need help please:

My laptop has 250GB of storage of which 219GB is taken up by System.

How can I see what is going on with my system and rectify it?

I am using High Sierra 10.13.6 and I am unable to upgrade as I do not have enough storage.


I am a total luddite when it comes to computers so please help with idiot proof answers.Thanks in advance.

MacBook Pro 13″, macOS 10.13

Posted on Sep 27, 2021 11:56 AM

Reply
Question marked as Top-ranking reply

Posted on Sep 27, 2021 12:32 PM

Apple has made it nearly impossible to know or control what is going on, but...


Have you emptied the trash lately?


Look for iOS backups…

/Users/[USERNAME]/Library/Application Support/MobileSync/Backup


OmniDiskSweeper shows you the files on your drive, largest to smallest, and lets you quickly Trash or open them.

https://www.omnigroup.com/more/


Purging local backups

Please note that although this doesn't affect your remote backup from Time Machine, this will get rid of the redundancy (at least until the next Time Machine backup) that a local backup disk will provide. If you need such redundancy or are worried about the recovery of your data then you would be best served to let macOS determine when to purge these files.

Start Terminal from spotlight.

At the terminal type tmutil listlocalsnapshotdates. 

Hit enter.


Here, you'll now see a list of all of the locally stored Time Machine backup snapshots stored on your disk.

Next you can remove the snapshots based on their date. I prefer to delete them one at at time. Once my "System" disk usage is at an acceptable level, I stop deleting but you can delete all of them if you want to reclaim all of the disk space.


Back at the terminal, type tmutil deletelocalsnapshots YYYY-MM-DD-HHMMSS , where will be one of the dates from your backup. This will be in the form of xxx-yy-zz-abcdef. Try to start with the oldest snapshot.

Hit enter.

Repeat for as many snapshot dates as required


http://www.thagomizer.com/blog/2018/03/27/cleaning-up-time-machine-local-snapshots.html


tmutil deletelocalsnapshots /  # deletes all the snapshots


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3 replies
Question marked as Top-ranking reply

Sep 27, 2021 12:32 PM in response to LB31GP

Apple has made it nearly impossible to know or control what is going on, but...


Have you emptied the trash lately?


Look for iOS backups…

/Users/[USERNAME]/Library/Application Support/MobileSync/Backup


OmniDiskSweeper shows you the files on your drive, largest to smallest, and lets you quickly Trash or open them.

https://www.omnigroup.com/more/


Purging local backups

Please note that although this doesn't affect your remote backup from Time Machine, this will get rid of the redundancy (at least until the next Time Machine backup) that a local backup disk will provide. If you need such redundancy or are worried about the recovery of your data then you would be best served to let macOS determine when to purge these files.

Start Terminal from spotlight.

At the terminal type tmutil listlocalsnapshotdates. 

Hit enter.


Here, you'll now see a list of all of the locally stored Time Machine backup snapshots stored on your disk.

Next you can remove the snapshots based on their date. I prefer to delete them one at at time. Once my "System" disk usage is at an acceptable level, I stop deleting but you can delete all of them if you want to reclaim all of the disk space.


Back at the terminal, type tmutil deletelocalsnapshots YYYY-MM-DD-HHMMSS , where will be one of the dates from your backup. This will be in the form of xxx-yy-zz-abcdef. Try to start with the oldest snapshot.

Hit enter.

Repeat for as many snapshot dates as required


http://www.thagomizer.com/blog/2018/03/27/cleaning-up-time-machine-local-snapshots.html


tmutil deletelocalsnapshots /  # deletes all the snapshots


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How to manage System storage - it is using 219GB out of 250GB

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