Originally posted by Fries Yes there is a equivalent on the Mac. The Apple back up program is called Time Machine. It will allow you to back up wireless to a Time Capsule which also functions as a router and you can create a home network with multiple Mac's. You can also use it to print wireless, but you can't stream music. For that you need a additional Air Port Express Base Station. For backing up with Time Machine on a not wireless external hard drive you can use any hard drive as long as it is formatted for use with a Mac. And even then you can format it yourself.
I' am less familiar with the Windows solution but it wouldn't surprise me if that works also with a Mac. Certainly if you use Windows trough Boot Camp on your Mac.
You don't even need a Time Capsule. Any network-connected drive can act as a wireless backup for Time Machine. Personally, I prefer to use an AirPort Extreme Base Station or a Time Capsule, though, since Apple routers are quite awesome (except for not including an audio port on those two. Damn you, Apple!).
Time Machine backs-up your changes automatically every hour, unless you choose to do it manually. It keeps hourly, then daily, weekly, monthly backups as you go back through time. It will, however, keep taking up more space until it runs out and starts deleting older backups for new ones (it will warn you), and you can't simply delete backups manually, so it's best to partition the drive or have a dedicated drive. Time Machine makes it very easy to find something back in time, though, as you can launch the Time Machine app and search for a word and it will show you the results for each backup as you go back through time.
And this reminds me that I need to backup the other hard drive in my computer!
Originally posted by Adam Question for more technical users-
If you have a mac (or linux PC for that matter) and a remote server, can't you just run rsync via shell to back up all your files?
Yes, I know you always could with earlier OS versions, so I'm sure you still can. I just never did it. I'm sure there's plenty in Google about it, though.