It took three days over a weekend to backup the NAS onto a 28TB drive, a day to perform data scrubbing, and it looks like it will take a day to repair the volume in my 4 bay Synology to incorporate the old 18TB backup drive 😅
Surprising to see the 18TB Seagate Exos appears to be running 7 degrees cooler than the IronWolf drives running alongside it.