I have a My Cloud EX2 with 2 x 3TB disks in RAID1 formation, but would like to replace the drives to gain extra capacity.
Is it possible to increase the array’s capacity by:
- replacing Disk 2 with a larger drive (eg. 4TB) and allowing the RAID to rebuild
- then replacing Disk 1 with a larger disk, and again allowing the array to rebuild?
Judging from replies to a similar question in the forum for a different type of WD NAS, the MBWE II, MBWE ii increase capacity to 2x 2TB it seems this may not work, as the MBWE II formats the replaced drive with the same (smaller) capacity of the existing drive, and they cannot be increased without reformatting BOTH drives, which destroys all data.
If the only way to increase the size of the NAS is by first copying all the data to another NAS/drive and then copying it back again (as is the case with the MBWE II) then I won’t do it, as this would involve purchasing a whole new NAS, which would come with its own larger drives anyway.
So I’d like to know if the My Cloud EX2 is smarter than the MBWE II in this regard?