Hey Guys,   A few days ago, unRAID knocked a HDD offline; its behavior indicated that it might be a physical failure. So I pulled the drive and wait for a warranty replacement. Meanwhile, something hiccuped with a cache SSD; which I'm hoping was just a bad data cable.     While waiting for the replacement HDD, another one went offline; I suspect there is nothing wrong with it so I moved it to empty slot which is on a different HBA & power/data cable and got it rebui