We have a ReadyNAS NV+ RND4210 v3 with two disks installed (1TB each), X-RAID. So we get 1TB space with redundancy on two disks.
My problem is that DISK1 indicates problems and I wanted to replace it. But I was being stupid. Instead of removing DISK1 and replacing it, I added DISK3 (a similar 1TB disk) and thought that I would after that remove DISK1. But instead of getting redundancy on three disks I got a total of 1845GB of storage, laid out over three disks.
If I remove either DISK1 or DISK3, the web GUI for the NAS tells me that NAS is not redundant and if a disk would fail now I would loose data.
What to do? I want to remove DISK1, replace it with the disk that is currently in slot 3, and I want total storage to be 1TB as before. Please help...
Your volume has expanded. X-RAID volumes are expandable not shrinkable.
You could ensure your backup is up to date, remove the failed disk, do a factory default (wipes all data, settings, everything) and restore data from backup.
Alternatively you could purchase another 1TB disk to replace the failed disk.
