<\/span><\/h2>\nRAID stands for Redundant Array of Independent Disks (Originally, the term RAID was defined as R<\/strong>edundant A<\/strong>rray of I<\/strong>nexpensive D<\/strong>isks<\/em>). The name indicates that the disk drives are independent, and are multiple in number. RAID storage uses multiple disks in order to provide fault tolerance, to improve overall performance, and to increase storage capacity in a system. This is in contrast with older storage devices that used only a single disk drive to store data.How the data is distributed between these drives depends on the RAID level used.\u00a0The main advantage of RAID, is the fact that, to the operating system the array of disks can be presented as a single disk.RAID is fault tolerant because in most of the RAID level’s data is redundant in multiple disks, so even if one disk fails,or even two sometimes, the data will be safe and the operating system will not be even aware of the failure. DATA loss is prevented due to the fact that data can be recovered from the disk that are not failed.\u00a0RAID should not be confused with data backup. Although some RAID levels do provide redundancy, We always\u00a0recommend\u00a0a separate storage system for backup and disaster recovery purposes.\u00a0<\/strong><\/p>\n