Can I expand my RAID or Add a Second one?
I have a 4 drive QNAP TS-451D2-4G that I've been running for about 4 years now. I would like to expand the storage capabilities but don't now about the details to do so. If I buy a QNAP TR-004 to expand it by up to 4 more drives, can I just add it on with the drives and expand the storage pool or would this require backing up all of the original data on the current array, rebuilding the entire thing with 8 drives, and then restoring the data? Is there a tutorial or FAQ on doing this anywhere?