Upgrade drive size on MyCloud EX2 Ultra

I want to change out my drives for larger capacity, is there a utility available to copy an old drive from a caddy onto the new drives or please outline another method for this purpose.

No utilities can do that. If your device set up a RAID 0 or JBOD, then made sure to copy the data to another devices before swap out the drives. If you use RAID 1 then just replace one drive and do a RAID rebuild, after REbuild completed replace the other drive and do a Rebuild. Finally you can do RAID 1 space expansion. HTH

1 Like

Hello Jebusx,

I have a Raid 1 setup and wanting to upsize the drives. I read both drives had to be the same size, from your reply, this is not needed or true?
So I can insert my 1Tb drive and swap out the other drive with the new 4 Tb drive, and rebuild?
then replace the 1TB drive with the second 4TB drive and rebuild again?
I am not familiar with the space expansion or even how to rebuild a Raid, pretty green here.

Yup, that’s how you do it. Let me find the manual page link for you on how to do a Rebuild and expand RAID drive size.

RAID Rebuild should be automatic or you can to it manually from the My Cloud Main menu page in the RAID tab.

Go to andrep182 on how to expand RAID 1 drive size

  • get to My Cloud main menu
  • click on ‘storage’
  • Under ‘Raid’ tab by ‘RAID Volume’, pick ‘Change RAID Mode’
  • It’ll warn you that it’ll interrupt the current services. Press ‘continue’
  • Pick RAID 1 and you should see ‘Expand Capacity’ option

Why does the software tell me all my data will be lost when doing above?
|Switch to RAID 1|
||You are about to re-format the hard drive(s). All data will be erased. Do you want to continue?|

You should not get that message if you do an expansion. It looks like you are converting from JBOD or RAID 0 to a RAID 1. Maybe you should contact WD support to walk you through step by step to expand your RAID 1 capacity.