Written by Uhro

How do I edit the RAID array on my Synology NAS?

Are you running the risk that your precious data will be lost because you are using 1 hard disk? All your data will be lost if the drive fails. It is therefore wise to work with a RAID setup. You combine 2 or more hard disks so that a disc can always fall out. In this step-by-step plan I will show you how to adjust the RAID setup on your Synology NAS.

What is a RAID setup?

RAID stands for 'redundant array of independent disks'. In a RAID setup you combine hard disks to increase performance and better protect yourself against data loss. You can read exactly how this works and what RAID setups there are on our advice page.


From To Minimum number of disks
SHR-1 SHR-2 4/5


Although the RAID setup mainly depends on your own wishes, there are setups that complement a NAS with a certain number of disk spaces. Below are a few recommendations.

Type NAS Recommendation
NAS with more than 3 disk spaces For a NAS with 3 or more disk spaces, the use of RAID 5 is recommended. You combine speed and safety here. Keep in mind that you lose 1 hard disk space here.
NAS with 2 disk spaces RAID 5 can not be used on a NAS with less than 3 disk spaces. Use RAID 1. With RAID 1 you can mirror the data from one disk to another. This way your data is always safe in case of 1 disk failure. Note that the available space halves.
NAS with more than 8 disk spaces RAID 6 is similar to RAID 5. You only use an extra disk to secure your data. If 2 disks are lost, you will still not lose your data. You lose 2 disks of available space.

Adjust RAID setup

Now that you know what options you have, it is time to adjust the RAID setup. You do this by means of the following steps:

  1. Open http://find.synology.com in an internet browser (for example Google Chrome, Safari, Firefox or Internet explorer) to open the NAS user interface. Use a computer connected to the same network as the NAS.
  2. Click on the top left of the main menu and then click on 'Storage manager'.
  3. A new screen opens. Choose 'Volume' in the menu on this screen.
  4. Select the volume on the right and press 'Manage' at the top.
  5. In the next screen you choose the option 'Change RAID type'. Then press 'Next'.
  6. Select the desired RAID setup and press 'Next'.
  7. (Optional) Did you add new hard disks to the NAS? Select it and press 'Next'.
  8. The RAID setup has now been adjusted.

Restore RAID setup

It is not possible to restore a RAID setup to the original setup without losing the data on the disks. Do you want to go back to an earlier RAID setup? Then remove the full volume. To do this, follow these steps:

  1. Open the configuration page of your NAS. Use a computer connected to the same network as the NAS.
  2. (Optional) Make a backup of the data on the hard disks. You do this through the application 'Synology Hyper Backup'.
  3. Open the main menu and select 'Storage manager'.
  4. A new screen opens. Choose 'Volume' in the menu on this screen.
  5. Select the volume on the right and press 'Delete' at the top. Confirm the removal.
  6. After deleting, choose 'Create' at the top.
  7. Choose the discs you want to use and press 'Next'.
  8. Select the desired RAID setup and click on 'Next'.
  9. The RAID setup has now been created. It may take a few hours for the volume to be fully ready for use. This can be recognized by the status in the volume overview.
Article by:
Uhro NAS Expert.

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