Recovery time will vary greatly depending on the type of RAID, number of drives and their size. While it may only take a few hours to recover a RAID 1 with two hard disks, a RAID 5 with four 4TB drives can take several hours. Seagate recommends that you plan your recovery accordingly.
First check what number the drive is detected as in your list of disks in your disk management utility. To access Disk Management, right click on( My) Computer, go to Manage, and then choose Disk Management. Within Disk Management, the drive should show in your list of disks in the lower portion of Disk Management (Disk 1,2 3 etc etc). Take note of the disk number for the drive. You will need it shortly.
**All data on the hard drive will be erased during this procedure.**
1 Go to DOS command line:
-In Windows 7/Vista, click the Windows icon and then type cmd in the search field and press Enter.
-In Windows XP, click the Start menu, select Run, then type cmd and press Enter.
2 In the command line, type:
and press Enter.
and press Enter to show all disks in this machine.
4 Figure out which disk you want to erase - it will be identified with a number.
select disk X
where “X” is the number of the disk you want to erase. This will set the focus to the specified drive
select disk 2
and press Enter to erase the disk.
6 Repeat with all drives you need to clean this way.
Note: You should leave the drives blank and not reformat them. Windows might prompt you to format the drives but you should put them as-is inside the NAS. The NAS will format the drives properly in a Linux format and will then build the RAID