A tale of three hardware interfaces…
As some of you may know, I’m relatively paranoid about backups—you can’t have too many, and you can’t make them often enough :). The macosxhints.com site is backed up twice a day via a set of scripts that use ssh and scp (and are scheduled via cron). For my personal machine, I use two external hard drives. The smaller of these two (an older version of this 250GB Maxtor drive) is used throughout the day to make backups of my key files. It also holds secondary copies of key things such as my iTunes music collection, iPhoto library, and digital video snippets. The larger of the two drives is a LaCie 500GB Triple Disk Extreme. At the end of each day, I run a full backup of the machine to the LaCie disk, and then power it down. But this article isn’t really about my backup strategy; it’s about the three interfaces on the Triple Disk Extreme (TDE), and a simplistic comparison of their performance on my machine (Dual 2.0GHz G5, first gen).
The TDE is so named due to its FireWire2, FireWire, and USB2 interfaces. A recent conversation with Chris Breen about FireWire vs. USB2 on the iPods led me to run a few tests on my hard drive, just to see how each interface performed. What got me started down this road is some stuff that Chris wrote in a couple of different iPod reviews:
In my tests, a dual-processor 2GHz Power Mac G5 filled a 6GB mini in 15 minutes and 17 seconds over USB 2.0. Using a FireWire connection shaved a scant 18 seconds off that time.
…
The nano is also quicker to sync than other iPods. I synced the same 903-track playlist on a 4GB nano and a 4GB iPod mini. It took 9 minutes and 15 seconds to sync the nano. The mini took nearly 7 minutes longer to sync, finally finishing the job in 16 minutes and 13 seconds.
So while USB 2.0 may not fare so well with other devices, as far as iPods go, syncing performance doesn’t appear to be a problem.
I thought I’d use my TDE to run a few tests in the Finder, just to see how things compared there. Read on for my results…