It looks like I need to get a new spare for my R6. I can see all the data from 5 of the 6 drives. It seems I have not lost anything but I apparently have some problems with drive 6. Now I understand this process, I swap the drive out and rebuild the array so I continue to have stability at the same or higher level RAID. Right now I'm at RAID 05. I currently have 2TB drives, this was a 2013 or 2014 purchase. So I'm wondering if I can buy bigger drives now and swap them out over time. First I swap the spare, number 6, the bad one now, to say a 4TB or 6TB drive then I eventually match what ever I get and swap those out one at a time. Will this work? I do have all the data backed up to LTO or on our Shared storage so I could simply wipe the drive and get larger drives. It seems like swapping drives one at a time would be better in case I do need immediate access to any data.