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What are the different RAID levels? Which one is recommended for file server and database server?

April 26, 2017database different file levels raid recommended server

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What are the different RAID levels? Which one is recommended for file server and database server?

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A. A Redundant Array of Independent Drives (or Disks), also known as Redundant Array of Inexpensive Drives (or Disks) (RAID) is an term for data storage schemes that divide and/or replicate data among multiple hard drives. RAID can be designed to provide increased data reliability or increased I/O performance, though one goal may compromise the other.