{"id":34118,"date":"2021-11-09T16:56:03","date_gmt":"2021-11-09T21:56:03","guid":{"rendered":"https:\/\/mjtsai.com\/blog\/?p=34118"},"modified":"2023-12-06T14:23:16","modified_gmt":"2023-12-06T19:23:16","slug":"disk-utility-in-monterey","status":"publish","type":"post","link":"https:\/\/mjtsai.com\/blog\/2021\/11\/09\/disk-utility-in-monterey\/","title":{"rendered":"Disk Utility in Monterey"},"content":{"rendered":"

Howard Oakley<\/a> (user guide<\/a>):<\/p>\n

\n

I’ve been on the look out for nominations for the title of the most improved utility of the year. I’m delighted to announce not just a nomination, but an outright winner: Disk Utility 21.0, bundled with Monterey. After four years in which it had offered frustratingly limited support for the new features of APFS, Disk Utility is now complete: this version has excellent support for snapshots, no matter which app created them.<\/p>\n

[…]<\/p>\n

The most recent snapshot has a Partition symbol shown against its Tidemark, a value which isn’t explained in the Help page, unfortunately.<\/p>\n

Select a snapshot from the list and you can mount it, show it in the Finder, rename it, and delete it, using the More button and the – tool at the bottom left.<\/p>\n<\/blockquote>\n

The Private Size column, which mostly but not completely matches what Carbon Copy Cloner shows, I think represents the amount of space that’s only used by that snapshot. This is the amount you would free by deleting it.<\/p>\n

There’s also a Cumulative Size column, shown as Size no matter how wide I make the table. This takes a really long time to calculate. At first, I thought this would be the difference from the current state of the volume, i.e. the Private Size plus the components of that snapshot that are also used by other snapshots. However, the fact that Cumulative Size is larger<\/em> for more recent snapshots, which differ less from the current state of the volume, seems to undermine that theory.<\/p>\n\n

Six years after the rewrite in El Capitan, we’ve still not regained the ability to open multiple windows (and thereby perform simultaneous operations or compare one disk to another).<\/p>\n\n

I also continue to see the problem, introduced in Big Sur, where external drives can take up to an hour to mount, during which time Disk Utility may constantly beachball, and other apps that use the Cocoa document system or file coordination will beachball as soon as they try to read or write a file. Thus, it’s no longer safe for me to initiate a backup while working.<\/p>\n\n

Previously:<\/p>\n