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  1. #1

    Disk drive suddenly turns read-only

    Hi all,

    I encountered the following problem
    when i boot up my linux, everything is fine, but when i tried to perform a oracle startup, my disk drive that contains the oracle suddenly turns read-only and i cannot even create file in that drive. I need to reboot my linux to work again.
    I researched that it might be a drive problem. How should i fix it? my drive is a mirror drive /dev/md0

    Thank you!

  2. #2
    Linux Guru Rubberman's Avatar
    Join Date
    Apr 2009
    I can be found either 40 miles west of Chicago, in Chicago, or in a galaxy far, far away.
    Mirrored drives have to both be healthy in order to get read+write access. If one is bad, the array will go into read-only mode. You need to determine which is bad, and replace it. The array software will rebuild it for you, but it has to be the same configuration (size, etc) as the original drive.
    Sometimes, real fast is almost as good as real time.
    Just remember, Semper Gumbi - always be flexible!

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