Time Machine superintend patronage by creating shot that reserve you to peer backward through time to select versions of text file , apps , folders , or other items that were later erase or modified . Snapshots have a double design :
For some users , these snapshots can produce out of control . Readers compose in regularly asking how to get rid of snapshots that fill their inauguration loudness , making their system nearly unusable . I ’ve provided answers in premature columns , such as “ How to delete Time Machine snapshots on your Mac ” and “ How to fix your mysterious Mac storage job . ”
If you had a New Mac , one execute the APFS filesystem Apple begin to bring out in macOS 10.12 Sierra , and were backing up to an APFS - format Time Machine intensity , you had few tools at your disposition , as Apple relied on a unlike attack with its long - run HFS+ filesystem .
With macOS Monterey , Apple update the Disk Utility app and its mastery - tune counterpart tohelp make do APFS snap , whether created by Time Machine , Carbon Copy Cloner , or other software package .
you’re able to watch snapshot by following these steps in Monterey with Disk Utility version 21 :
At the bottom of the volume horizon , you may see all the snapshots made for that volume . bivalent - snap any snap , and it mounts in the Finder as a browsable volume . This can be much easy than using Time Machine to find a given set of previous Indian file .
you may select any snapshot and click the – ( subtraction ) button beneath the lean to delete it . Warning!This is irreversible .
To get a footling more information in the list , cluck the … ( More ) button and chooseShow Columns > Private Size . This reflects the genuine space occupied on the drive by the snap . This is in direct contrast to the Tidemark , which tracks the smallest partition size that can be currently used to go for the active files and snap free-base on how data is structured in the snapshots . If you want to resize the container that holds the startup volume , it ca n’t be made smaller than the Tidemark economic value , which may explain errors you have seen if you ’ve attempt to resize such volumes and wondered where the miss store was ! Note in the figure above that the Used value for the volume group is 435.21 GB , but the Tidemark symbol ( a sectionalization icon ) come along next to 494.38 GB , nearly 60 GB more .
( Tidemark is a technical full term Apple only seems to define in the tooltip when you loom over the column title of respect . It notes , obscurely , “ The high block cite by a shot , which can not be move and limits shrivel its container partition . ” More plainly , it ’s a bit like Tetris or Jenga in that snapshots hold imbrication sets of changed files — you have to delete not just the latest or some snapshots to thin the Tidemark , but one that cascade down to reduce the overlap require . )
Howard Oakley of Eclectic Lightinitially document this solutionand credits being tipped to it by someone else . chew the fat his clause for more technical inside information , include how to habituate command - line options withtmutil .
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