Backups don’t include everything. Here are details of those items excluded from Time Machine backups, and why they’re excluded.
backup
The rules for preserving document versions are based on their being associated with the document’s inode number, and on the same volume. Here are the details and a way to preserve them whatever.
How do clone files and sparse files cope with being backed up and restored? Can they save space in iCloud Drive? Some of these answers may surprise.
How DAS gathers its budgets and loads lists of activities. When rescoring permits, it then dispatches the process to initiate backup. Re-scheduling has changed in Sequoia, as shown here.
Deciding which file system to use for hard disks can be difficult. Here are the advantages and disadvantages explained in detail, for HFS+ and APFS.
How snapshots are created from a volume in around 0.01 second, why they will grow in size over time, how they can only be of complete volumes, and can’t be edited.
Does your NAS need faster storage or a faster network? If you were to improve those, would throttling limit the performance of backups?
It’s well known that writing Time Machine backups to storage is throttled to slow them down. What’s the point of using faster SSDs that are more expensive if macOS stops them from being fast
macOS logs may only last a few days, or even hours, into the past. Here’s a quick and simple way of browsing the log from weeks, months or even years ago.
Setting a new (or pre-owned) Mac up can be quick and easy when you use Migration Assistant. When is best, what should you migrate from, and do you need iCloud to help?
The Eclectic Light Company 