Hi, I have a problem with my Supermicro servers. I used a RAID 5 consists of 3 discs 320Gb for a total of 596Gb. I added a fourth disk to expand the volume. Now the RAID 5 with 4 disks of 320 GB has a total area of 894Gb, but the disk manager always finds the old size. What did I do wrong, how can I fix it? Thanks to everyone 's help. I enclose two photos to be clearer.