%A NIM. 13651073 RIZKI DEWANTARA %O Agung Fatwanto, Ph.D. %T ANALISIS AVAILABILITY SISTEM INFORMASI AKADEMIK UNIVERSITAS ISLAM NEGERI SUNAN KALIJAGA YOGYAKARTA MENGGUNAKAN METODE FAILOVER COMPUTER CLUSTER %X Excellent academic information system and high service availability is a demand from the company. This technology is used in anticipation if there is a failure or damage in devices on the server computer that can disrupt the performance on the server network. This study uses the method of failover computer cluster is a method that uses two servers in the form of primary server as the main server and secondary server as backup server, this research through the four main stages of the first Installation and configuration of the next support software Installation and configuration failover cluster. The third stage is the installation and configuration Distributed Replicated Block Device (DRBD). The last stage is testing the server by using siege and nettool. This study was conducted to test the initial server that has not done high avaibility and after done high availbility so that if the main server system failure occurs then the backup server will backup the main server automatically to the backup server to minimize the failure of data accessed by the user. This system is implemented using ubuntu 16.04 LTS operating system as its operating system. Based on the data tested obtained two data for packet data and responsive time data (ms). Packet data obtained average data sent as much as 233.3; Average data received as much as 228.3, average lost as much as 2.3; While data responsive time (ms) obtained average average as much as 59,7; Minimum average of 2.7; Average maximum of 633.8. The data sent is 120B civil. %K Cluster, Failover, availability, data backup %D 2017 %I UIN SUNAN KALIJAGA YOGYAKARTA %L digilib28471