Optibay, WD Scorpio Blue and motion sensor

Discussion in 'MacBook Pro' started by nickday, Jun 23, 2011.

  1. nickday macrumors member

    Joined:
    Feb 28, 2008
    Location:
    Manchester, UK
    #1
    Hi,

    I've searched the forums and read several threads, but I can't find a definite answer to this question, so I hope somebody can clear up my confusion. :)

    I'm going to get an Optibay from eBay, keep my Apple SSD in its normal location, and install a hard drive into the Optibay.

    I've read that the hard drive installed in the Optibay won't be protected by the built in SMS protection - is this true? Does this mean that the hard drive I get should have its own motion sensor/protection?

    I'm looking at the WD Scorpio Blue which has "SecurePark" according to http://www.wdc.com/wdproducts/library/SpecSheet/ENG/2879-701278.pdf - is this motion sensor/protection OK? Or do I need the Scorpio Black, which I think I read somewhere has a different type of motion sensor?

    I've read reports of constant spinning up/down and clicking noises due to conflicts between the hard drives build in motion sensor, and the MBP's built in SMS, so I'm a bit confused as to which drive is best.

    Thanks for your help!
    Nick
     
  2. awer25 macrumors 65816

    awer25

    Joined:
    Apr 30, 2011
    #2
    You're correct that it won't use the built-in motion sensor when in the optibay, but the SecurePark feature isn't the same thing. It just means that when the drive isn't being used, the heads are parked off the platter surface (which is true of basically any drive, so I don't know how it's a feature). If you're worried, get a drive with a real drop sensor.
     
  3. njaremka macrumors 6502

    Joined:
    May 11, 2010
    #3
    i would get the black, or move the SSD to the optibay.
     
  4. nickday thread starter macrumors member

    Joined:
    Feb 28, 2008
    Location:
    Manchester, UK
    #4
    Thanks for your replies. So it looks like I need to be sure that the HDD I put in the Optibay has its own motion sensor.

    Comparing...

    Blue: http://www.wdc.com/wdproducts/library/SpecSheet/ENG/2879-701278.pdf
    Black: http://www.wdc.com/wdproducts/library/SpecSheet/ENG/2879-701275.pdf

    ... both of them have "ShockGuard" and "SecurePark". Is ShockGuard the motion sensor (in which case I'd be OK with a Blue, not that fussed about speed), or is the motion sensor something else that is only on Black models? I can't find any definitive answer on this.

    Thanks,
    Nick
     
  5. MRiOS macrumors regular

    Joined:
    Jun 2, 2010
    #5
    I'm currently running my MBP with an Intel SSD and a WD 500GB Blue in an optibay. I've had no problems whatsoever, even when going bad and forth between classes. As I've seen, Blues are basically everyday drives that perform very well for day to day use, The Black drives are there for enhanced performance, they are slightly faster and better for those who need that extra power or speed.
     
  6. awer25 macrumors 65816

    awer25

    Joined:
    Apr 30, 2011
    #6
    It seems that it probably is the motion sensor
     
  7. wikus macrumors 68000

    wikus

    Joined:
    Jun 1, 2011
    Location:
    Planet earth.
    #7
    Am I reading this correct? The main HD bay in macbook pros has some kind of anti-shock prevention system incase the laptop is dropped, securing potential damage to an HDD, where as the optical bay via an optibay does not?

    Does this, if true, also apply to Core i7 MBPs before the sandybridge release?
     
  8. awer25 macrumors 65816

    awer25

    Joined:
    Apr 30, 2011
    #8
    Yes, that's true.

    I don't know.
     
  9. bozz2006 macrumors 68030

    bozz2006

    Joined:
    Aug 24, 2007
    Location:
    Minnesota
    #9
    Yes, there is a sensor built into the system for a drive in the HDD bay which sensing a sudden change and will park the heads so the don't crash into the platter of the hard drive upon impact. This is for the HDD bay only, not the optical drive bay. Many hard drives also have this technology built directly into the drive. You can get your hard drive info from system profiler then google it to get the info for your hard drive from the manufacturer's website.
     
  10. wikus macrumors 68000

    wikus

    Joined:
    Jun 1, 2011
    Location:
    Planet earth.
    #10
    This is REALLY good to know, I was going to shift over the HDD to the optical bay and use an SSD in the main buy. I may as well just put in an SSD into the optical bay and omit doing anything with the main drive.

    Thanks!!!
     
  11. DWBurke811 macrumors 6502a

    Joined:
    Jun 10, 2011
    Location:
    Boca Raton, FL
    #11
    You may run in to problems booting from a drive in the optibay.
     
  12. nickday thread starter macrumors member

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    Feb 28, 2008
    Location:
    Manchester, UK
    #12
    I still can't seem to confirm whether the Scorpio range (Blue or Black) have a proper free-fall sensor. I'd like to keep the SSD where it is (possible booting problems etc by moving it to optibay), so I want to make sure the HDD I get has a proper motion sensor.

    I'm now thinking that the Seagate Momentus 5400.6 might be the best bet. It gets quite a good writeup on noise here and has less vibration than the Scorpio on Silent PC review here. Also it has the added benefit that I'm 100% sure it has the motion sensor (G-Force protection), and from ifixit.com I've found out that it is the Apple-supplied stock drive that was in the HDD version of my MBP (from my experience Apple generally pick quiet drives).

    The only snag is that they don't do a 750gb version so I'd have to make do with 500gb. I'm also considering an Hitachi one as they get good reviews noise-wise too, and noise is the most important thing to me really - but need to see if any of those have motion sensors.
     
  13. cvs macrumors member

    cvs

    Joined:
    Feb 23, 2011
    #13
    I have the Blue 750GB on Optibay and it is very quiet, in fact I do not hear it at all on the 15'' MBP 2011.

    No Scorpio has the good old G-sensor that the now obsolete 320GB model had.
    I am not sure if the now call it Shockguard or something, but between the Black and the Blue, the rpm is the only difference I can find in the spec sheets.
     
  14. awer25 macrumors 65816

    awer25

    Joined:
    Apr 30, 2011
    #14
    To be honest, just get what you need size/speed-wise, don't worry about the fall sensor, and make regular backups with TM.
     

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