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[JavaLawyer]

This procedure describes the steps required to restore a RAID-1 following a HDD failure on the DNS-320/321/323/325 Series ShareCenter.

Procedure
If a RAID-1 drive has failed, the DNS-320/321/323/325 Series ShareCenter will display the HDD LED light, of the corresponding drive, in Amber and you will receive an email from the DNS-320/321/323/325 stating a drive has failed if this option has been configured. If this happens, follow these steps to restore the RAID-1 settings:

• Power down the ShareCenter
• Remove the failed drive from the ShareCenter
• Insert the new drive into the ShareCenter
• The new drive Should be blank with no partition on the drive The drive may still be detected and prompt to format if formatted in NTFS
• Power on the ShareCenter
• After a minute log into the ShareCenter web interface
• You will be prompt to format and resync on entry, click OK
• Formatting a hard drive will erase the data stored on the hard drive. Please backup important data before formatting a hard drive
• This action will format the replaced drive only and sync the two hard drives in RAID-1
• Wait for format and resync to complete. The ShareCenter is now ready for use