Does a RAID array provide automatic backups?
RAID 陣列是否有提供自動備份？
RAID systems can be configured for use as a backup drive. Software running on a computer or server manages the backups, and files are copied to a RAID which is directly attached or connected to a network as a NAS device.
Because RAID systems have more than one drive and use redundancy, there is a common belief that data is protected and doesn't require a secondary backup. But, while redundancy provides some safety against data loss, there is no protection if more than one drive fails.
RAID系統可配置為備份驅動器。電腦或伺服器中運行的軟件會管理備份檔案，並複製檔案至RAID。這些檔案將直接附帶或連接至網絡成為NAS設備。
因為RAID系統有多於一個的驅動器並作冗餘使用，普遍認為數據會受到保護，無需二次備份。雖然冗餘能保護數據，免於遺失，但當多於一個驅動器發生故障時，將無法保護數據。