First I would like to understand is the server is on cluster environment. If so you can try stopping the cluster service and try the partition. It will work & later you can start the cluster service. If its the standalone server, you can remove the spindles swap it on different bays and try it. If you are using 4 disks for example, try removing one and try partition with rest3. Like that you can find out where the exact issue is.
If its the hi-end server, then in the boot up screen shows the RAID configurations. Check whether you had missed out anything on the RAID side.
If none of these works, don’t mind elaborating exactly what you are doing.