XenServer Add new Local Disk Storage

My Xenserver local disk corrupted and failed to boot.

I tried to re-install Xenserver on the device but it told me only a clean install was possible. 

I did not want to do this as i hoped i could recover some of the VM's from the disk.

I had a spare hard disk so i placed a 2nd hard drive in my XenServer. 

I then put a fresh install of Xenserver on that new hard disk. 

XenServer did not see the the older hard disk, so i mounted it with the following procedure which does not destroy any data on the disk.

http://support.citrix.com/article/CTX119905

This then let me see the VMs in the console though i had no VM information only the disks. Unfortunatly the VMs when mounted as a seperate drive on a working VM still did not work so i think the disk was corrupted.

I then replaced the hard drive with a brand new one and added from scratch with the following procedure
http://support.citrix.com/article/CTX121313