SLES12 physical server with apache 2.4, 2 Xen VM's and a webapp called alfresco. We are getting ready to update to SP1 and after that, i have been tasked with clustering the SLES12 server. We will use server 2012 R2 hyper-v for the SLES12 SP1 nodes. Since we do not have any support contract, it looks like we have to "make" the HA extension from disc 2 of the installation media, right? Can anyone provide a doc or pointers on how exactly to do this?