I need to setup 2 Xen servers to share the same external array drive so I can do live migration back and forth.
I can get the live migration working between the servers without the array but when you migrate the guest over it does not migrate the image and all you have is the guest system running in memory.
What I need to do is have the updated images on both boxes so when I do a migration or need to start up the guest on the other xen box the guest is the most current system.
I have thought about FTP'ing the image and config files to the secondary host once an hour but that is alot of transfers and is not practical.
I then decided the best way is to have one drive on an array and have them both pointed to it that way if there is an issue with the primary host server I can just stop the guest OS on that server and them start it on the secondary. This would also allow me to get all the guests running on the secondary if the primary host dies completely.
Has anyone done this or know of a guide to do this? I was going to TRY to do a cluster but the 2 host boxes have different CPU's and memory amounts. In the future I will have identical boxes to use.