The diploma thesis describes the installation of an information system for small companies, where we get to know the procedures for building a system from hardware level to installing software on several levels. The information system is built from physical servers, a data storage area network (SAN), and a local network infrastructure. ESXi virtualization environment runs on physical servers, which allows a high level of hardware utilization and thus reduces the need for space and other resources that can lead to higher maintenance costs. By implementing a data storage network on HP EVA hardware, I achieved system independence from servers and other equipment in the information system; this ensured the reliable and secure operation of the data system. Windows server operating system is used as a virtual server software solution, which offers a very good and extended range of solutions in this area. The implementation of the system was completed with the installation of servers for file transfer via FTP network, e-mail, active directory and domain server for domain management in the information system. Functioning of an individual server in the information system is independent of the others, despite the use of the same hardware basis. Possible problems on one server do not affect the remaining servers.
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