RAID 0 for SSD Late 2011

Discussion in 'MacBook Pro' started by SayMilesAway, Dec 14, 2014.

  1. SayMilesAway macrumors regular

    SayMilesAway

    Joined:
    Nov 11, 2011
    Location:
    Florida
    #1
    Hello, I have a late 2011 Macbook Pro with a Crucial M4 SSD and the original 750GB HD in the superdrive slot using the optibay. I was wondering if I could purchase another SSD and put it where I have the old 750 Apple HD and do a RAID 0 setup? Would this work effectively? Is the superdrive a 6GB SATA? Any input would be great! Thanks.
     
  2. bax2003, Dec 14, 2014
    Last edited: Dec 14, 2014

    bax2003 macrumors 6502a

    bax2003

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    Dec 25, 2011
    Location:
    Belgrade, Serbia
    #2
    Do not RAID SSD and HDD....much better option is to make Fusion drive.

    For Stripe RAID (RAID-0) to work optimal you need two+ drives which are at least similar speeds. Data is splitted between drives for speed in RAiD-0, but if part of data is MUCH slower, what is the point ?

    With fusion drive, you get capacity of both drives but speed od SSD when it matters.
     
  3. SayMilesAway thread starter macrumors regular

    SayMilesAway

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    #3
    The post states I will be purchasing another SSD thus having 2.
     
  4. bax2003 macrumors 6502a

    bax2003

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    Dec 25, 2011
    Location:
    Belgrade, Serbia
    #4
    I am just saying that you do not RAID-up Crucial M4 SSD and classic mechanic 750GB hard disk drive, as you call it: old 750 Apple HD.
     
  5. maflynn Moderator

    maflynn

    Staff Member

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    #5
    Yup, some people do it. I think there's a risk, since if you one volume incurs any sort of corruption or issue, you lose the entire RAID. Make sure you have a solid backup.

    Since RAID 0 offsets the latency in the mechanical drive, I wonder if you'll be benefitting all that much with a RAID 0 set up. I mean SSDs are fast, and if you're not really doing anything that pushes the drives, I don't think you'll notice a huge improvement on your day to day usage.
     
  6. Cloudsurfer macrumors 65816

    Cloudsurfer

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    Apr 12, 2007
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    Netherlands
    #6
    I actually configured my girlfriends 2010 Mac mini this way. Took out the superdrive and fitted two crucial m500's in there. The 2010 only has sata 2 so she gets around 500 mb/sec but with sata 3 you should get near 1 gb/sec.

    Note though that you will only benefit if you actually use those speeds. My girlfriend often duplicates large files so the raid-0 setup does pay off in her case.
     
  7. SayMilesAway thread starter macrumors regular

    SayMilesAway

    Joined:
    Nov 11, 2011
    Location:
    Florida
    #7
    Yes, I understand what you are saying. I said I was going RAID two SSD's. Not 1 SSD and 1 magnetic drive. You misunderstood.

    Thanks. Even a Ferrari starts to feel slow after a while lol
     
  8. T'hain Esh Kelch macrumors 601

    T'hain Esh Kelch

    Joined:
    Aug 5, 2001
    Location:
    Denmark
    #8
    Unless you really need the added speed, I don't really see an advantage in doing that, apart from the mirror backup of your files of course.
     
  9. glenthompson macrumors 68000

    glenthompson

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    Apr 27, 2011
    Location:
    Virginia
    #9
    Some 2011 MBPs have problems with a SSD in the opti-bay.
     

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