Upgrade / replace existing HDD with bigger hard drives on WD NAS MyCloud and other
Upgrading NAS drives Message Body: I have a WD MyCloud Mirror NAS. It has 2x2TB drive running Raid 1 and it only has 2 bays. I would like to upgrade it to 4TB available space (2 x 4TB HDD’s) because my backups quickly fill the 2TB space. Is it difficult to do this? Do I need special HDD’s or can I use any HDD? Do NAS drives handle any size disks or will I need to change some of the internal hardware when I upgrade? At present I use Western Digital’s website to check or format the drives that are installed.
The process is fairly simple.
You need to remove one drive at a time. Wait until the rebuild is done and then replace another one. It may take a day to complete though.
With dual-bay solutions, HDD make and model is not as important since everything is mirrored anyway.
Replacing a drive on a RAID 1
RAID 1 duplicates all data from one drive to another providing complete data redundancy. This allows for the data on the Cloud Storage device to still be accessible as normal after a experiencing a single drive failure. To replace the failed drive, follow the steps below:
- Open the dashboard. Please see Answer ID 22007: How to Access the Dashboard on a My Cloud Device for help with this
- Click the Alert Icon to confirm the Volume Failure
- Additionally, Click the Storage Icon to view the RAID Health to confirm Degraded
- Click the Auto-Rebuild button to enable the RAID to automatically rebuild. The My Cloud must be rebooted for changes to take effect
- Select Manual Rebuild, to initiate a RAID1 rebuild without a reboot
- The Manually Rebuild Now dialog will prompt the user to click Next. This dialog warns all data on the newly inserted drive will be erased. Note: The Next button will not be active as shown below
- The RAID Health will show Healthy as shown below. The rebuild completed successfully. Click Close
The Front Panel LED’s will be blue
What to expect if a drive fails:
- What to expect if a drive fails on a RAID 0
- What to expect if a drive fails on a RAID 1
- What to expect if a drive fails on a Spanned volume
- What to expect if a drive fails on a JBOD setup