![]() You ordinarily don't need to, and should not, delete local snapshots yourself. The snapshots are automatically deleted when they expire or when free space falls below a certain level. ![]() In the Storage display of System Information, local snapshots are shown as Backups. ![]() The space occupied by local snapshots is reported as available by the Finder, and should be considered as such. When Time Machine backs up a portable Mac, some of the free space will be used to make local snapshots, which are backup copies of recently deleted files. Available storage space that you'll never use is wasted space. There is little or no performance advantage to having more available space than the minimum Apple recommends. You also need enough space left over to allow for growth of the data. That will temporarily free up some space.Īccording to Apple documentation, you need at least 9 GB of available space on the startup volume (as shown in the Finder Info window) for normal operation- not the mythical 10%, 15%, or any other percentage. If you use iPhoto, empty its internal Trash first:įile ▹ Show Recently Deleted ▹ Delete Allĭo the same in other applications, such as Aperture, that have an internal Trash feature. If the display seems to be inaccurate, try rebuilding the Spotlight index.Įmpty the Trash if you haven't already done so. By the time that we reach 13.6 next summer, even that 40 GB disk with 22 GB of free space in 13.0 could well have lost sufficient free space to make further updates tight for free space.For information about the Other category in the Storage display, please see this support article. Once happily running macOS 13.1, free space was around 0.5 GB less than it had been in 13.0. ![]() Updating to 13.1 also has a long-term cost in terms of free space. To have any degree of comfort, make that a 40 GB disk with at least 20 GB free. In practice, even for the modest needs of a basic Ventura 13.0 installation in a VM, the smallest disk size you’ll be able to update from 13.0 to 13.1 is 33 GB, providing at least 14 GB of free space. So depending on when you run it, the installer might claim it needs 12.97 GB, 13.22 GB, or 13.56 GB of free disk space, but really wants around 14 GB. I was reminded of it when TidBITS reader Marc Heusser wrote to tell us that upgrading from macOS 12.6.1 Monterey to macOS 13.0.1 Ventura on an M1 MacBook Pro with insufficient free space resulted in errors that prevented the MacBook Pro from booting. For work, I need to run the Microsoft OneDrive client on one of my Macs, and I was surprised to see that it recently crossed the 1 GB threshold. Users are disrespected by increasing and surprising bloat in applications. Check Free Space Before Updating to Big Sur.diskspace Tool to Report APFS Free Space.These days I find that I want about 150 GB for a test partition that will include macOS, Xcode, and enough space to clone my Git repo and run the tests. Given that drives can be a terabyte in size, this doesn’t seem wildly inappropriate however, many organizations still buy devices with 256GB drives (thus going from an eighth in the 64GB drive era to a quarter of common drive space required to be free for certain upgrades on smaller drives today). Therefore, scoping policies to run an updater without causing undo issues to end users it’s entirely appropriate to make sure they have the amounts of free space indicated per version. The net result is that when doing the last few upgrades, they have required 12+GB for the installer itself (which can be run from a USB drive) and up to 44GB for the installer to do the work it needs to do, so a total of up to about 56GB. This was 2016 and the amount of free space required to do an upgrade would increase dramatically. Sierra (Mac OS X 10.12) had a minimum drive capacity of 8.8 GB but really needed more like 12 GB however there wasn’t a hard number sanity check that I personally ran into. Free Space Required for Modern macOS Upgrades
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