specific ssd raid question (kingston x25m g1 + intel x25m g2)

Discussion in 'Mac Pro' started by instabusto, Aug 21, 2010.

  1. instabusto macrumors member

    Joined:
    Nov 21, 2009
    #1
    Ok,

    I have a Kingston (x25-m G1) 80gb ssd, can i add a G2 intel x25-m 80gb, and have them in raid0? So it would be g1 vs g2, and kingston vs intel(same thing tho in this case?).

    If this is possible, is there something extra to be done in order to get ssd's in raid0, or should it work exactly the same as with hdd's ?

    cheers
     
  2. philipma1957 macrumors 603

    philipma1957

    Joined:
    Apr 13, 2010
    Location:
    Howell, New Jersey
    #2
    i have a lot of intels they must have the same firmware for raid0 it is a 4 digital number like 4785 it is on the upper right as you read the print. I am guessing you will not have matching firmware.
     
  3. nanofrog macrumors G4

    Joined:
    May 6, 2008
    #3
    In theory they should work. But given the fast access speeds (no where near the latency of mechanical), you may have some issues with this arrangement (I've not mixed SSD's to be certain of what the behavior would be).

    To be on the safe side, you'd be better off running identical drives (no throttling/stuttering due to one drive being faster than another, or instability).

    Where did you get this information?

    RAID is actually meant to be able to use mixed drives (as a general rule). This is also rather an easy thing with software implementations (far less picky, and you can use consumer grade drives, which are cheaper).

    But when you go with a true hardware solution (proper RAID card), you will get into specifics in terms of drive model numbers and firmware revisions (minimum version at any rate, as that and newer work together; mixing older however = unstable). Hardware solutions are much harder to deal with over drives, namely due to the recovery timings. Even the RAID card's firmware revision can matter.

    As per SSD's, the speed at which they run could concievably cause problems if they don't "match" up in terms of performance (latency issues come to mind that result in timing problems during access = unstable). I'm just not absolutely sure of real world results in such situtations, as I've not put in the time to investigate further (mixed drive environment).
     
  4. instabusto thread starter macrumors member

    Joined:
    Nov 21, 2009
    #4
    Thanks for the input! I won't take the risk unless someone replies in here having tried a similar thing that worked without problems :cool:
     

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