Unable to see my second harddisk on dimension 9200

Posted on 2009-02-17
Last Modified: 2012-05-06
Hi ,
I current have a dimension 9200 with two 250G sata hard-disk and RAID 1 setup.
I just re-imaged (windows XP) the dimension 9200 and setup the RAID 1 again and now only 1 of the sata hard disks is viewable in computer management.
I cannot get the second harddisk viewable at all on the pc.

Does anyone know if I need to setup something specific in the BIOS ?

Question by:deal2aces
    LVL 2

    Accepted Solution


    If your computer only has two hard disks and you are using RAID1, then only 1 drive will be visible in Computer Management. RAID1 mirrors your entire hard drive onto another, meaning you have two hard drives with exactly the same data on. The benefit of this is so if one hard drive fails, your computer will still function. It also means that essentially you are halving the amount of space you're able to utilise.

    Can you confirm there are only two hard disks total in the system?
    LVL 2

    Author Comment

    Hi HyperDawn:,
    Thanks for the reply
    Yes there are two harddisk on the pc.  Do you know a way to get the second harddisk active ? without re-imaging the pc ?
    LVL 2

    Expert Comment

    Well the only way is to get rid of your RAID array, in thoery you can go into your RAID utility during startup (there will usually be a key you can press at startup to launch it) and break the array and your computer should still function fine. I've never done such an operation myself, but it should be quite straight forward in the options with minimal risk.

    The other drive should then appear in Computer Management and in My Computer by itself, but it will probably need formatting as it will be a mirror of your current drive.

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