2.5" Drives & RAID 0 - Is it fast?

By Savage1701
Jun 27, 2008
  1. I am considering getting one of those little 5.25" bay devices that hold (4) 2.5" SATA notebook drives. My question is this - assuming I get 7200RPM notebook drives, would I notice a speed improvement over my 150GB Raptor if I put 2 or even 4 of these drives into a RAID 0 configuration? Or are the laptop drives just too far behind the desktop drives to make a performance difference? There is no compelling reason for me to do this, just wanted to try it out but only if it was worth the effort. Thanks in advance for any thoughts on the matter.
  2. Tmagic650

    Tmagic650 TS Ambassador Posts: 17,183   +225

    It may not be worth doing it... for sure
  3. jobeard

    jobeard TS Ambassador Posts: 8,945   +584

    With only two drives, the improvement would be marginal.

    Raid-0 increases performance (at the risk of reliability) by spreading data
    horizontally across the HDs
    so that the time to move the arm can be used to position multiple arms (in this case two),
    and the data transfer then occurs without seek time for the second (or subsequent) hd.

    MASSIVE issue for backup and restore; you need 2x the backup capacity too :(
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