On: Apple WWDC 2015

[ctdonath]

Nope. Your hard drive crashes for any reason, Time Machine data is lost.

Think "Photos" for all your files. Think "Time Machine -> Preferences -> Use iCloud".

[mikeash → ctdonath]

Time Machine goes on a separate hard drive. Your data isn't lost unless you lose both drives at the same time.

That said, cloud backups would be great to have.

[ctdonath → mikeash]

One word: fire.

[mikeash → ctdonath]

Certainly. I'm fond of saying that data that isn't backed up doesn't exist, and data that isn't off site isn't backed up. But just the same, Time Machine isn't vulnerable to the more mundane sort of hard drive failure.

[rhodysurf → ctdonath]

So its going to yell at me every day because I have reached the free tier backup limit?

[ctdonath → rhodysurf]

Presuming it follows the Photos model, you presumably will be able to easily turn off iCloud usage or upgrade to a paid 20GB-1TB+ plan.