Problems getting an external hard drive to work on the new Airport Extreme

Question

I have spent hours trying to get my 320GB external hard drive to work with the new airport extreme 802.11N. I have spent hours pouring over all of the posts here discussing possible solutions, all of which have not worked. This morning, however, I gave it another try and FINALLY, I have it working. I tried something simple. Here it is:
Using the Apple Disk Utility Program, I formated my drive using the MS-DOS mode, called my Hard drive "ItunesHD". It took about 20 minutes to complete (i'm assuming because of the size of the drive). I then unplugged the router and hard drive, turned on the hard drive, then the router. After my macbook pro reconnected, I clicked on the iDisk utility icon in my menu bar, provided my password and FINALLY saw the network drive icon on my desktop!!! It seems that formatting my drive using MS-DOS compatibility mode finally worked for me. I'm not saying this will work for anyone else who is having this problem, but you can at least try it. I tried all of the MAC formatting options and have had no luck.
What I would like to know now is (..if anyone has these answers, please let me know):
1. What is the maximum SINGLE drive capacity that this router will understand...500GB, 1TB, 2TB? I would like to get the biggest bang for my buck.
2. Keeping #1 one in mind, I purchased an Apple TV (still waiting on it to arrive) and I would like to know if it will read multiple hard drives connected to the Airport Extreme router (...say (2) 500GB hard drives). I know you can have multiple libraries in iTunes (which to me is a cheesy solutions, there should be an option in the preferences that would allow you to save your music in one place and your movies in another). Anybody have any idea on this one?
I basically want to rip all of my dvd movies on a big hard drive connected to my airport extreme to use with my AppleTV , so I just need to find out about the maximum size and hooking up more than one hard drive and getting the AppleTV to recognize them all.
thnks
MacBook Pro Core Duo Mac OS X (10.4.8)

Answer 1

Sorry you had so much trouble hooking up a hard drive to the base station. I've done some experimenting with the feature and this is what I've found out.
You can use either the native Mac format, Mac OS Extended, or the Microsoft format known as FAT. Apple calls FAT, MS-DOS File System in Disk Utility.
If you use Mac OS Extended, the Macs on the network will be able to connect to the drive using the native AFP (Apple File Protocol) or the Microsoft native SMB (Server Message Block) protocol. PCs will only use the SMB protocol of course.
If you use MS-DOS File System both the Macs and the PCs will only use SMB to connect to the drive over the network.
Basically I've found everything works as expected with regard to volumes connected to a network.
One thing I don't have installed is the iDisk Utility. I'm wondering if it may be the cause of the problems you were having. But reading through your post it may also be the difference between expected behaviour and the proper procedure for discovering and mounting network volumes. Let me explain.
You only mention having trouble getting the drive to show up on your Desktop, you didn't describe how you went about discovering the network drive. It isn't just suppose to show up on your desktop when you plug it in to the Extreme base station. It doesn't work like the iDisk or disks connected directly to your computer using USB/Firewire.
Normally with network drives you're suppose to either browse for them using the Network icon in the Finder or using the Connect to Server command in the Finder's Go menu, you would type the address in directly for the network volume you want to mount. Try it and see what happens.
Now to answer your other questions.
I don't have a volume large enough to hit any limits the base station may have but I did read a post about someone who said they had a 1.5 TB volume connected and could only see 1 TB of it. They were forced to partition the drive to see all available space and of course the volumes showed up as two separate drives. One thing wasn't made clear though. They didn't say what volume format they were using to format the drive, Mac OS Extended or MS-DOS.
Everything having to do with the AppleTV is just speculation at this point since no one has one yet but from what has been demonstrated so far, AppleTV relies on iTunes. In other words, it won't pull data from network volumes on its own, a computer running iTunes needs to feed it.