This server has been in this same configuration for YEARS. I don't see myself needing larger disks, but things can always change. In all honesty I could probably get rid of half the data on this server and never miss it (mostly movies that we no longer watch on our HTPC because we can stream them from various services). Instead this server is mostly just a place to backup our other PCs.
Well, looks like I spoke too soon. There were over 192,000 errors found on the new data disk during the building of the parity.
Did I get a bad disk? Do I need to start over? Run a FS check on the data disk?
The new drive arrived. I moved the data from the cloned disk to the drive and copied the data from the 500 GB drive too using Krusader and the videos on Youtube from Space Invader One. All went well. I then started a new config and set the first 3TB drive (the cloned drive) as my parity drive. The sync process has started so I should be back up and running! Huge thanks to @JorgeB and everyone else for getting me back up!!!
Amazon will be sending me a replacement. I don't have to ship the other one back before they ship the new one so I can't get the same one back thankfully.
So I can use the remaining drive I originally bought for parity and move the data to it, then use this disk as my parity drive correct? Otherwise I would have to order another disk as the 2 left in the array don't have enough free space.
The replacement is showing as a new disk. Should I remove the bad disk from the array before starting maintenance mode and checking the filesystem on the new disk?