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Second Hard Drive, Sudden Motion Sensor

1670 Views 3 Replies Latest reply: Dec 11, 2009 3:05 PM by ryangaris RSS
ryangaris Level 1 Level 1 (0 points)
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Dec 10, 2009 7:14 PM
Back in the fall I put a SSD in my 2007 MacBook Pro. It's working perfectly. I found the "OptiBay" product, which basically replaces your optical drive with an adapter for another hard drive. I haven't received it yet, but when I do I plan on installing it with a traditional hard drive. My question regards the sudden motion sensor (SMS). I disabled it because it's not needed for the SSD, but I was planning on re-enabling it for my secondary that I will be installing. I'm still going to boot off the SSD, though. Is there a way, or terminal code, to assign the SMS to a certain disk? I'm assuming it will just disable the root drive in the event of "sudden motion," but would this affect a secondary drive?
I'd love for there to be an option to change the identifier, from disk0s2 to disk0s3, but I have a feeling it isn't possible or would be infinitely more difficult... thanks.
MacBook Pro Intel 2.2ghz, Mac OS X (10.6.1), Intel X25 80GB
  • iVmichael Level 6 Level 6 (13,725 points)
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    Dec 11, 2009 3:25 AM (in response to ryangaris)
    You can leave it enabled with a SSD it will just ignore it as there's no heads to park, with both in it will apply to the drive with moving heads. As far as I know you can't specify a drive.

    2.4 Ghz 15" 4GB RAM 500GB/7200 Unibody MBP, 60GB iPod, iPhone 3G 16GB, Mac OS X (10.6.2), Assorted other Mac's and PC's running OSX, Linux, WinXP, Win7
  • JoeyR Level 6 Level 6 (8,275 points)
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    Dec 11, 2009 5:11 AM (in response to ryangaris)
    Most drives are available with the equivalent of an internal SMS. You just have to check the specs. Drive manufacturers often offer two versions of their drives... one with and one without a SMS. If you get a drive with the SMS built in, you can just leave the MacBook's internal one disabled.

    Here is an example of one of the most popular drives:

    Seagate's SMS technology is referred to as G-Force. Note the product number: 5400.6_g. The "g" denotes the drive has a "G-Force" sensor.
    Core Duo BlackBook - SR MBP - 13.3" MB Pro - 8GB Gen 2 and 3 Nanos, Mac OS X (10.6)


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