The acronym RAID stands for Redundant Arrays of Independent Disks. This is a technology developed to increase performance, security and storage capacity in environments involving On Premise servers and storages, Data Centres and Cloud Infrastructure. The technology in question began to be developed by researchers at the University of Berkeley (California-USA) in the mid-1980s. This technology is based on the synchronisation of multiple disks, whether SATA, SSHD, Nearline, SAS and FC [Fibre Channel] , to form one or more logical disks viewed by both the RAID controller and the operating system chosen to use the logical volume. The implementation of RAID systems combined with system virtualization, scalable storages containing differentiated technologies such as All Flash Storage and a high-speed internet enabled the creation of IT departments On Premise, Data Centres and the so-called Cloud Computing, where they are located business-critical applications, such as large ERPs such as SAP. There are several types of RAID and the most used respectively are RAID 5, RAID 1, RAID 10, RAID 6 and RAID 0.