Dan Benjamin recently posted about performing hard drive backups at Hivelogic, his weblog.
He uses a variety of methods. I thought I’d share my own methods, and while they are working now, I think I will expand a bit within the year.
For the sake of understanding how I do what I do, it’d be best to describe what equipment I have.
- PowerMac G5 tower (holds two drives)
- 3 LaCie HD (Firewire)
- Apple Timecapsule
I’d echo Benjamin and say that having a bootable clone of your drive is a good idea. SuperDuper!, a program I’ve bought, does a smart-backup feature which updates the clone image as often as you like. Before you start, however, it helps to have a second HD that is the same size.
So, if you are backing up a 750GB drive, you need a second drive of equal or larger size. Maybe not at first, if you only have 300 GB of files; but in theory, you’ll need something at least as big. You have to begin thinking, then, of acquiring drives “in pairs.”
I currently use the two internal drives in my computer to hold the Mac OS system, home folders, etc., on one drive; the iTunes folder on the second. I now use the 1TB Time Capsule (hybrid backup and Aiport Wifi router) to backup both drives. For now, it is adequate, but it is a short-term solution. Calculated in less than a year, this will be inadequate. The TimeCapsule uses Apple’s Time Machine software to backup everything.
I used to keep a cloned copy of the music drive on an external HD. But then it grew too big to fit on one drive. That is likely what I’ll do in the future: buy another HD for mirroring/cloning the media drive; use TimeCapsule to do the computer’s main backup.
Keeping cloned copies would be a luxury. Like Benjamin, I keep Mail loaded through IMAP with Google Mail. It is of course also backed up on the computer through it’s own backup on TimeCapsule.
Other options for more storage include devices that hold multiple drives (NAS, Drobo, RAID systems), and of course, a new computer chassis (the 8-core MacPro holds 4 internal drives). I’m excited at some point to load up a new computer with a smaller boot drive (320GB) that runs at 10K or even 15K RPM. This would speed up the computing experience, for sure.
As more laptops make it into the home, I become aware that loading software on all your home machines is like maintaining a lab. I’ve also toyed with acquiring a 10-seat license for Mac OS X Server to use a technology Apple calls “Netboot.” This boots the computer off the server–all your applications are off a disk image stored on the server.
Your local client machine can hold files (i.e., documents), or your could even share them on a mount point on the server (everything is centrally stored). If files lived on the client machines, you could back each of them up to the centralized TimeCapsule. Future Apple products may include TimeMachine write to an OS X Server (mere speculation, but it would make sense in work environments).
Above all, I can say from experience, it’s important to keep backups of your work. I’ve known folks who keep everything on a flash drive “as the backup.” They may own all of 600MB of files that fit on a 1GB thumb drive, but that isn’t very wise.
Recommended backup programs I’ve used over the past few years:
- Carbon Copy Cloner
- Chronosync
- Time Machine (Mac OS X Leopard)
- SuperDuper!