This thesis covers a problem which companies faces every day: Finding a Storage Area Network(SAN) solution that tackles the rising demands from users and their software and when working with virtualization environments. In this paper it will be showed a way to investigate and identify, from a selection of SAN technologies, which is the most eﬃcient and optimal based on scenarios that ﬁts real life experiences. The approach taken was to create an experimentalsetup in a controlled environment that ﬁts real life experience. The benchmark tool bonnie++ was used to simulate activity and interpreted by an analysis script tool developed by the author.Distributed Replicated Block Device(DRBD), Network File System(NFS), Parallel Virtual File System(PVFS), Internet SCSI(ISCSI) and ATA over Ethernet(AoE) are the SAN technologies which will be evaluated and discussed. The optimal SAN technologies will be chosen based ona certain criterias such as raw performance and stability.