“Time Machine in OS X offers a quick way to back up your entire system, but one requirement for this is you need to plug in your backup drive in order to keep the system backed up,” Topher Kessler writes for MacIssues.
“For desktop systems this is a matter of simply keeping the drive attached and tucked away behind your iMac, Mac Mini, or Mac Pro; however, if you are a MacBook owner, then you might find yourself periodically misplacing your drive, or not having it with you, and then getting messages that you haven’t backed up in a number of days,” Kessler writes. “There are two easy approaches to help prevent this, especially if you have multiple Macs available.”
1. Use a Time Capsule or supported NAS
2. Create your own Time Machine server
All of the info and instructions both both approaches is here.
MacDailyNews Take: Please have a strategy in place for routine backups!