For Patrick Sasso/Rohan -- Aggregate Device Question

Patrick and Rohan,
I noticed that the thread which Patrick started was "archived" and replies are not allowed. ( http://discussions.apple.com/thread.jspa?threadID=237354&tstart=0 )
Wondering what that's all about... But anyway, here's my question:
I'm also running a PCI-424 and some MOTU interfaces also (old 2408 and some 1224's), but I'm not using the aggregate devices settings. So I'm wondering if I'm not aware of some useful aspect of the whole aggregate device thing... What are you using the aggregate device setup for? Is there an advantage to using it with a straight-forward audio recording/playback situation using the existing capabilities of the PCI-424 + interfaces?

AFAIK this has always been possible (in panther....)
as the 424 is configured, but appears as 1 device to
the OS. Make sense or did I misread?
I think you could do it off the MOTU PCI without
aggregation, right? I am not a big MOTU guy but...
Well, let's put it this way: when I got my G5 one of the first things I did was pop in the 424 card, hook up the interfaces, run the MOTU config thingee and it recognized all 3 interfaces without a hitch. Great!
Then I installed Logic and without glitches it saw all of the MOTU ins and outs. Great!
In my 40 output setup, Logic simply numbers the outputs consecutively, in the order that the interfaces are plugged into the 424 card. Within Logic there is no designation of outputs belonging to any particular device, i.e., none of the audio output labels are designated "MOTU 2408" or "MOTU 1224 #1" or "MOTU 1224 #2". They're just outputs 1 - 40. So in a sense, the way Logic "expresses" the MOTU outputs, it's as though they're "aggregated" -- a single device.
It was only many weeks after I got my system up and running that I decided to explore the menus in the Audio MIDI Setup, and ran across this strange thing called "aggregate devices". There was zero, zero, zero documentation about it in the G5 manual nor in on-board Help, and a search of Apple's website turned up virtually no information. So basically, all this time I've been running with my MOTU interfaces, never configured anything having to do with aggregate devices, and I've yet to experience any kind of audio glitch with Logic. Great!
So in conclusion, I'd say that if an audio system consists exclusively of MOTU devices, setting up aggregate devices isn't necessary. Same situation with the MIDI side of AMS, really... with Logic you don't need to configure AMS MIDI to do anything. In fact, as you may have read in some of my prior posts, setting up MIDI in AMS actually creates more work than it's worth.
Therefore, my AMS is devoid of any user settings, except for the (seemingly) mandatory AMS-audio settings for "internal clock".

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