Plus Drive Replacement of NSA220

Hi

I have an NSA220 Plus box that I've been using for several years quite happily.

Recently I purchased two new 2TB Seagate hard drives to fit in and replace the old 1tb discs (in a paired raid) that were now full.

However, when I replace the drives I am unable to get the box to start up.  The new drives have been initialized in Windows prior to installing them in the NSA Box, but have not been partitioned or formatted.

If I put the original drives back in then the device works fine.

Any suggestions?

Thanks

#NAS_Feb_2019