Knowing how to mirror a hard drive allows you to prevent losing data in case one drive fails. Mirroring a drive is a basic method to create a RAID 1 setup. You don't need to be all that familiar with this concept, but RAID stands for redundant array of independent disks. You are creating a redundancy by mirroring two drives with the same data. This is useful in case of one drive failing. It does not provide any type of performance increase and you will only be able to use the storage capacity of about one of the drives. You will need two disks to set up a simple drive mirror. Follow these steps to mirror a hard disk in Windows.
What you will need:
- Two hard disks already installed (same capacity and model work best)
- A computer running a version of Windows that supports disk mirroring, such as a server or Windows 7
- From the start menu, go to control panel.
- Go to administrative tools and open computer management.
- Select disk management from the list on the left of the window.
- To mirror a hard disk that contains a Windows installation, right click this drive and select add mirror.
- Select the second drive as the disk to use as the mirror.
- Follow the steps to set up the disk mirror. It may take some time to set up, depending on your computer.
If you need to backup important data, it is still a good idea to use an off-site back up in addition to mirroring the hard disk. This is because if your computer is damaged, your data would still be lost.