Crappy disk speeds - RAID issues?

Discussion in 'MacBook Pro' started by Ploki, Jan 15, 2013.

  1. Ploki macrumors 68040

    Jan 21, 2008
    I'm getting pathetic RAID0 speeds - 20mb/s with dual scorpio blacks.

    My drive got corrupted - had to repair it.

    Is one of my drives dying?

    SMART status isn't showing anything. Also, everything is there and readable. I'm getting a new laptop in 2 days and also made backups just today, but I don't want to screw the buyer when I sell it.
  2. SandboxGeneral Moderator emeritus


    Sep 8, 2010
    You could have some bad sectors on the drive. You may want to run a maintenance tool on it.

    I actually use a PC DOS-based program called Spinrite as a maintenance utility and data recovery utility on all my HDD's. You have to have an IBM-PC in order to use it though. You take the HDD out of the Mac and connect it to the IBM-PC and run the program. Below is my old MBP HDD in a Dell PC with Spinrite working on it.



    I also wouldn't trust the SMART status either.

    Above text from Steve Gibson of the podcast Security Now, episode 385 (transcript)

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