I downloaded an checked the logfiles;
The message "Disk /dev/sda doesn't contain a valid partition table" comes up in several places, even though the system works fine and all data is accessible.
As only open-e was used to format/partition/resize the disks, I do not see how this could have hapened.
I have seen this error before, usually means the RAID is complaining about errors releted to hardware even though units are visable to the system. This is problably why you are having a hard time getting the new capacity to present itself properly. Start the remote support so monday we can check. Send the logs as well.