Read write problems

I have a new macbook pro with 4GB ram and a 3.06Ghz core duo processor.
I use Logic Pro Studio with 2 Motu 896mk3's
after recording about 13 tracks I am now getting "disk too slow errors" After using activity monitor it doesn't seem to be a cpu or ram issue but disk speed maybe.
After reading forums it seems like my macbook isnt suited for recording this many tracks.... would a really fast firewire harddrive be better?? if so any recommendations?

Aaron Wallrich1 wrote:
I have a new macbook pro with 4GB ram and a 3.06Ghz core duo processor.
I use Logic Pro Studio with 2 Motu 896mk3's
after recording about 13 tracks I am now getting "disk too slow errors" After using activity monitor it doesn't seem to be a cpu or ram issue but disk speed maybe.
Sometimes these messages actually do point right at the problem
The general rule of thumb is that the startup disk is least suited for working with streaming audio (or video, for that matter). The system (OS X) is also interacting with the startup disk while you're working in Logic, which of course has an adverse effect on playing back/recording of audio files.
Second argument against using the SU disk for streaming/recording is that the system can sometimes 'take over' the disk for certain background tasks you have no direct control over, and this can in some (rare, but always inconvenient) cases even disrupt or fail a recording session. An external disk is "free" from this system traffic and can dedicate its full speed purely to recording/playing back the audio files that are on it.
Having said that, if you have a 5400rpm disk, you could improve your track count by ± 30% by replacing it by a 7200rpm disk. Your Mac will become snappier too in certain area's.
My advice: get a FireWire external disk, and store your Logic projects there. Secondly, if your budget allows it, replace the 5400rpm internal HD with a 7200rpm HD.

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