Failure in upgrading LS-WVL one of the 1TB hard drives to 3TB

[simingweng]

I have a LS-WVL running with 2 x 1TB drives in RAID 0 mode. Now it's almost full and my plan is to swap one of them with a 3TB drive.

 

Due to the RAID 0 mode, I knew I had to backup everything on the NAS before I could do the swapping. So,  I started by putting the new 3TB drive into a dock station and connected it to NAS through USB. I thought the LinkStation would be able to format it to XFS format so that I could copy everything to the new hard drive through USB from the Web Access interface, then delete the RAID and do the swapping. But I had no success in doing so. "USB Device" showed up in "System-Storage", but formatting failed every time.

 

Then, I tried a different approach. I formated the new drive to XFS on a Linux box and repeat the above steps. It's still not recognized as USB external storage, nor could I format it.

 

what are the steps to get this done properly? Doesn't LS-WVL support USB external storage larger than 2TB? What if I leave the new drive in the Linux box and backup everything through LAN, then reset the NAS to "Normal Mode", and swap one of the existing drives with the new one? will the new one fit in with the whole backup data?