Is a NAS system worth considering for your backups? Could one replace your existing Time Capsule? Here’s additional information to help you decide.
Time Machine
Can you get Time Machine to back up faster by turning I/O throttling off? If so, it this something to do only for large backups, or can it be set as the default? Does it also affect other background processes?
iCloud Drive just works. Time Machine just works. So Time Machine should back up the contents of your iCloud Drive? Maybe not.
Have you found Time Machine docs helpful in solving problems? Do you know what “custom access” means in the Permissions section of Get Info?
All disks cache data to be written, which makes benchmarking them tricky. It has more serious consequences which macOS tries to allow for in file systems and backups.
Why Time Machine makes snapshots, and how they can grow and apparently consume free space. What you can and should do to manage this.
Snapshots are of great value, but can grow large if you don’t keep an eye on them. If you find Time Machine or another backup utility is storing large snapshots, here’s what to do.
Problems with the file system of Time Machine backups haven’t gone away with APFS. As there’s no way to copy your backup volume, how to tackle such problems?
Is it overhead from sandboxing, the file system, the throttling of I/O, or the limitations of the Efficiency cores? Is there anything a user can do?
Since Catalina, reports of Time Machine backups slowing to a crawl have become common, but the reasons are unclear. It’s time for Apple to inform us.
The Eclectic Light Company 