Disk Utility Mistake

Hi, I have three hard disks. While using "Disk Utility," on "3rd Disk" (3rd Disk is run on Mac OS X, Tiger 10.4.11) I made a mistake and clicked on "Repair Disk" instead of "Repair Disk Permissions." Now the "3rd Disk" icon is grayed out, and when I click on the grayed out icon nothing happens. The "3rd Disk" icon is also missing from my startup "Hard Disk." What should I do to fix this problem?
Angel

Repair disk should not have done anything like that unless the drive was already in a very bad state and ready to go. Did it do this instantly, or did it work on the drive first? Did the drive report any other errors? Is this an internal or is it an external drive? Is this drive formatted to Mac format? Is this drive being run through a PCI controller card? A Quicksilver can normally only take 2 hard drives so you must be doing something extra.
Do you mean the third disk has Tiger on it? A disk isn't run on anything individually. If your computer is booted to Tiger all disks are being run on Tiger. If your computer is booted to Leopard all disks are being run on Leopard.
I have seen Disk Utility leaves drives unmountable if the drive is bad, but only when formatting.
Have you tried restarting the computer? Does the drive mount on the desktop? Does Disk Utility see the drive?

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