I have a couple of VMware ESX server's and a Dell iSCSI Equallogic. I can add a LUN to several server's. The problem is that each time I add a LUN to a server ESX formats it. and all data is lost. Also, when a serevr looses connection to a LUN all other servers will also loose connection. E.g. if I remove a LUN from serverX it will also dissapear from serverY. NFS storege does not have this problem. Is there a way to add LUNs to ESX without formatting the LUN each time?