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Re: Maximum external and internal HD size with iMacs

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Matt Doe
Re: Maximum external and internal HD size with iMacs
on Jan 7, 2010 at 7:04:31 pm

While I haven't been booting from external drives, I've been using them for years as media drives for FCP and the like. I've used all kinds of drives fro 250gb up through 3TB drives with no problems; I don't think there is a Mac OS limitation to sizes of external drives. I've had a 8TB Drobo external drive connected to my Mac Pro for over a year and have had zero issues.

I see no problem with upgrading to any size drive either externally or internally (I currently run 4, 1TB drives in my Mac Pro).

As far as how many drives you can hook-up. You can daisy chain as many drives as you want, assuming you have enough power. I may be mistaken, but unless you RAID those drives, you will see a performance decrease as you add more and more drives simply do to the limitation of the transfer speed of the connection type, FW400, FW800, ESATA or whatever.

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