Found in Sierra, but seems to have fallen into disuse, and not found in High Sierra.
backup
Running High Sierra? Do you keep your Photos Library on an external drive? Do you realise that backing it up using Time Machine is likely to be a waste of time?
Xattr flag to prevent the file or folder (and its contents) from being backed up by Time Machine. Used in Photos Libraries and elsewhere.
When Sierra’s automatic backups stop or become irregular, other functions fail too. Here are some important and more obvious ones. Is this fixed in High Sierra, and does it affect iPhones too?
Does APFS support its major new features – clones, snapshots, etc – yet, and how can you use them?
This new version lets you select which log file to analyse, and to add custom processes to examine within log files. Lots of power with elegant simplicity.
For now, Time Machine can’t back up to an APFS volume. There are many problems with backing up APFS to HFS+, though. Time Machine needs to be revised.
Should fix a bug in which T2M2 reports an error message rather than completing an analysis of Time Machine backups.
You may still have plenty of space on your backup volume, but if it has millions of files and hard links from years of backups, it will be very slow. Here’s how to fix that.
The High Sierra upgrade did not go well for many users. Here are some of the reasons why macOS 10.13 is currently a lemon.
The Eclectic Light Company 