Although I am a self-confessed VMWare nut, even I can't totally justify their pricing and insistence on buying support wether you need it or not. So with that in mind I'm taking my first proper looks at Xen (it's free!).
My Linux knowledge is not to hot, so I was wondering if someone could explain some of the following to me.
If I set up three servers, how do I get them to access the same LUN. AFAIK if one OS has the LUN is would be locked to the other OS's. VMWare got around this by using their own FS, VMFS, that locks at the file level instead. I would want to store all my VM's on said LUN then run them accross 2/3 Xen servers.
Also, I understand that Xen can do Live Migration. I assume this needs all servers accessing the same LUN to work. Does Xen do automatitac Load Balancing with Live Migration? Also can it do the equivalent of VMWares High Availability - so if server fails it auto restarts on one of the other servers?
Finally, what software so you use to manage the servers/vm's? Is there a Xen equivalent of Virtual Center and Virtual Infrastructure Client in VMWare. It would be good to manage 2/3 servers from 1 (pref. Windows based) app.