In this thesis, a centralized hardware monitoring system for HP servers is developed at Ericsson in Linköping. The centralized system is then evaluated and compared to the current decentralized monitoring system. The results show that not only is the information displayed by the centralized system more detailed, but the configuration process for new servers is also simplified. Cost savings are also identified, since the same monitoring plugin and configuration script can be used for all server generations. Interviews with employees who work with monitoring on a daily basis also shows that they prefer the centralized monitoring system over the current decentralized system, however a high availability solution needs to be implemented for the central part of the monitoring system since it otherwise can become a single point of failure.

Denna rapport innehåller en studie över ett operativsystems påverkan på lastbalanserarenHAproxy. Studien utfördes i en experimentmiljö med fyra virtuella testklienter, en lastbalanseraresamt tre webbservernoder kopplade till lastbalanseraren. Operativsystemet varhuvudpunkten i studien där belastningen på dess hårdvara, svarstiden, antalet anslutningarsamt det maximala antalet anslutninger per sekund undersöktes. De operativsystem somtestades var Ubuntu 10.04, CentOS 6.5, FreeBSD 9.1 och OpenBSD 5.5. Resultaten fråntesterna visar att hårdvaran och svarstiden är näst intill identisk på samtliga operativsystemmed undantag för OpenBSD där förutsättningarna för att genomföra hårdvarutesternainte kunde uppnås. FreeBSD var det operativsystem som klarade av att hantera flestantal anslutningar tillsammans med CentOS. Ubuntu visade sig vara mer begränsat ochOpenBSD var mycket begränsat. FreeBSD klarade även av högst antal anslutningar persekund, följt av Ubuntu, CentOS och slutligen OpenBSD som visade sig vara det sämstpresterande. / This report contains a study over an operating system’s impact on the load balancerHAproxy. The study was performed in an experimental environment with four virtualclients for testing, one load balancer and three web server nodes connected to the loadbalancer. The operating system was the main point in the study where the load on theload balancer’s hardware, the response time, the amount of connections and the maximumamount of connections per second were examined. The operating systems whichwere tested was Ubuntu 10.04, CentOS 6.5, FreeBSD 9.1 and OpenBSD 5.5. The resultsfrom the tests shows that the load on the hardware and the response time are almost identicalon all operating systems with the exception of OpenBSD where the conditions to beable to run the hardware tests could not be achieved. FreeBSD was the operating systemthat was able to manage the highest amount of connections along with CentOS. Ubuntuturned out to be more limited and OpenBSD was very limited. FreeBSD also managedthe highest amount of connections per second, followed by Ubuntu, CentOS and finallyOpenBSD which turned out to be the worst performer.