A. You need an area of unpartitioned space that is at least the size of the primary partition to repair a broken mirror set. To perform the repair, complete the following steps:

  1. From the Start menu, select Programs, Administrative Tools, then Disk Administrator.
  2. Click the working part of the mirror, hold down the Ctrl key, and select the area of unpartitioned space.
  3. Select Establish Mirror from the Fault Tolerance menu.