Backup software for Mac OS X [closed]

"I use Time Machine and (registered) SuperDuper. Time machine is good for being able to access old versions of files and generally ""not having to think about it"". I do a full drive clone with SuperDuper every week, so I have a backup I can boot from if my
main drive fails. The smart copy feature is well worth the registration cost - a week's worth of changes on 60GB take about 20 mins to backup."

"Time Machine integrates well with, for example, Mail, Address Book or iPhoto. Simply enter Time Machine while one of these applications is active, and you'll get the regular star field with that application (rather than the normal Finder). Makes it easy to even restore messages from email accounts that you've already deleted a long time ago.

Note that one can easily use multiple Time Machine disks, to get some redundancy."

"I use CrashPlan, and the key feature for me is its extensive deduplication, which not only handles and reduces the space required for multiple copies of files, but also as files are changed or moved and renamed. Which is a big thing when backing up across the Internet (either to friends, or to their central service.)

Their free client (free for personal use) does a daily scan and backup. If you pay the small amount for their 'CrashPlan+' license then it will hook into your OS's native file monitor mechanisms and can be set to back up anything new or changed as often as once-per-minute."

I find rsync the most versatile. It even works in all platforms.

"I use Time Machine (changed to run every 4 hours instead of every hour) and I use Apple Backup (part of MobileMe) to do an off-site backup once a week to MobileMe.

This setup has worked well for me for over a year now."