Creating a RAID 1 Array 

RAID 1 array provides much more security because the mirror disk can replace the original disk when the original disk fails. If there are more than 1 single physical disk (not a member of an array and not an ATAPI device or a removable disk), users can choose the Create RAID 1 menu or click the RAID 1 button on the toolbar to create a RAID 1 array. Follow a wizard to go through creating the array. 

1. Select Disks: All the auto-detected available disks of your computer are listed in the Available Disk list box. You may add an original disk and a mirror disk from the Available Disk list box.

2. Select One of the Following Options. (Synchronize is the default option):

Initialize:  Use two disks create a RAID 1 array and clear all data on them.

Synchronize: Create a RAID 1 array and duplicate all the data from the original disk to the mirror disk.

3. Specify Array Name: If you do not specify an array name, the system will assign a default name for the selected array automatically. 

If your RAID controller supports dedicated spare disk for RAID 1 array, you can specify a spare disk for the RAID 1 array by adding a spare disk. Otherwise, you needn't select a spare disk when create a RAID 1 array.

4. Add a Spare Disk: If you have three available disks, the Use a spare disk option allows you to select a spare disk for the array.

Note:    

1.The capacity of original disk must be smaller than the mirror disk. Otherwise you will get a warning message and must make the reselection.

2.If you select a spare disk for RAID 1 array, please note the capacity of spare disk must be more than that of the RAID 1 array, otherwise you will get a warning message and reselect the disk.

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