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Pretty much the title: it possible to use a modern, 2.5″ SSD in an Apple Drive Module on a early 2008 Xserve? This would be replacing a 15k RPM SAS drive, and in most places I've looked that HDD is almost as expensive than a similarly sized SSD.

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SSD drives behave exactly like standard disks, so the only thing you should care about is the drive's interface. If a SSD drive has a SAS interface, it can be conneted to any SAS disk controller, regardless of the surrounding hardware and operating system.

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While this is true physically and electrically, there may be logical reasons why this doesn't work, such as the controller firmware requiring specific drive models or specially keyed firmware on the drives. I can't say I've ever seen this in practice, but I've seen anecdotes to this effect. That said, it'll probably be fine –  Daniel Lawson Feb 9 '12 at 21:40

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