Hello, I had a WD NAS fail on me so I purchased a Synology DS923+ and one HD that was big enough to hold all of the data from the failed NAS. I setup the DS923+ and got all of the files on it, but when I went to add 3 of the drives from the old NAS I couldn't add them to the same volume (or I didn't know how to) due to them being smaller capacity. So, I created a new Storage pool and then a new Volume with the 3 drives from the old NAS. I duplicated the data onto the new volume thinking that I can delete the single drive volume and add it to the volume with 3 drives, but when I went to do it I got worried I would delete the DSM when I deleted the original volume and be out of luck. So, what is the proper way to make this setup a single volume, if it is possible?