RAID configurations were designed to be as robust, speedy and redundant as possible, but they are far from indestructible. While it is relatively uncommon, even a single hard disk failure can cause issues within a RAID array, and can cause data loss and serious consequences for your company's computing environment. Some typical causes of RAID failure include:Single or multiple drive failures within the array, Intentionally or accidentally formatted partitions, Infection by Virus or Malware, File system corruption, RAID controller failure, Power surges, and Incorrectly performed RAID rebuilds