A network administrator is setting up a web server for a small advertising office and is concerned with data availability. The administrator wishes to implement disk fault tolerance using the minimum number of disks required. Which RAID level should the administrator choose>?

RAID 1

Explanation:

RAID (Redundant Array of Inexpensive Disks or Drives, or Redundant Array of Independent Disks) is a data storage virtualisation technology that combines multiple physical disk drive components into one or more logical units for the purposes of data redundancy, performance improvement, or both.

RAID 1

Disk mirroring, also known as RAID 1, is the replication of data to two or more disks. Disk mirroring is a good choice for applications that require high performance and high availability, such as transnational applications, email and operating systems. Disk mirroring also works with solid state drives so “drive monitoring” may be a better term for contemporary storage systems.

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