Can any of my fellow OS X nerds recommend a piece of software — ideally, freeware or cheap shareware — that would allow me to monitor disk activity on a per-disk basis? I know Activity Monitor has a disk-activity window, but so far as I can tell, it’s either for the internal hard drive only or for all disks combined (I’m not sure which). I want to monitor the activity on one of my external hard drives specifically.
The reason I ask is because “Joementum,” the 160 GB Seagate portable drive that I bought from Outpost.com last summer, has been having a problem whereby it seems to just randomly freeze up and stop working for 20 or 30 seconds at a time, every few minutes. It’s been doing this ever since I got it, but at first, I thought it was a problem with a too-large iPhoto Library (since that’s what I primarily use the drive for: to host my massive, 47.5-gigabyte “iPhoto Archive” library, which contains 57,672 photos and movies taken between July 1999 and August 2005). However, I’ve recently noticed the same behavior when working with the Finder and other applications, so I’m convinced it’s the drive that’s the problem.
Anyway, I’d love to be able to collect some visual evidence of this phenomenon, so that I can be fully armed when I call the manufacturer and demand a refund or replacement drive. Hence my wanting disk-activity monitoring software of some sort. (I can use Snapz Pro X to take a screenshot movie.)
P.S. If I do get a replacement, I think I’ll call it “Joementum the White.” :)
P.P.S. Come to think of it, “Lieberman the White” isn’t a bad nickname for the junior senator from Connecticut, considering that he was slain in a mighty battle with
the Balrog Ned Lamont, only to return to life the Senate as an even more powerful wizard Independent Democrat. ;)