SERVICE AVAILABILITY DAN PERFORMA SUMBER DAYA PROSESSOR PADA INFRASTRUKTUR SERVER VIRTUAL

n Server that have high processor capacity and virtualization technology capabilities are generally not fully utilized optimally as they are only used to provide one application service. Virtualization is a technology that has the ability to empower the physical resources of a server to be built into multiple server machines virtually. In addition, the provision of the server is still using a single server, so that when a service failure caused by damage to its hardware or software components, the service availability to users will be disrupted. In this research will be developed the ability of server-based virtual server service and application of server failover as a technique in providing service availability. The method used in this research is through experimental approach and simulation is done by generating a number of request rate to the server. The process of testing and retrieving data is done by using several applications such as httperf generator, sysstat, and free. The result of this research is the percentage of processor utilization on native server, using average resource equal to 67.99%, while processor utilization on virtual server with 2 VM is about 43.73% average, so the processor level on the virtual server is lower than native server. n Keyword: failback, failover, native server, service availability, virtual server n n