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2. RAID - Wikipedia

   en.wikipedia.org/wiki/RAID

   RAID (/ r eɪ d /; redundant array of inexpensive disks or redundant array of independent disks) [1] [2] is a data storage virtualization technology that combines multiple physical data storage components into one or more logical units for the purposes of data redundancy, performance improvement, or both.

3. Standard RAID levels - Wikipedia

   en.wikipedia.org/wiki/Standard_RAID_levels

   Diagram of a RAID 1 setup. RAID 1 consists of an exact copy (or mirror) of a set of data on two or more disks; a classic RAID 1 mirrored pair contains two disks.This configuration offers no parity, striping, or spanning of disk space across multiple disks, since the data is mirrored on all disks belonging to the array, and the array can only be as big as the smallest member disk.

4. Disk mirroring - Wikipedia

   en.wikipedia.org/wiki/Disk_mirroring

   RAID 1 layout. In data storage, disk mirroring is the replication of logical disk volumes onto separate physical hard disks in real time to ensure continuous availability. It is most commonly used in RAID 1. A mirrored volume is a complete logical representation of separate volume copies.

5. Nested RAID levels - Wikipedia

   en.wikipedia.org/wiki/Nested_RAID_levels

   RAID 01, also called RAID 0+1, is a RAID level using a mirror of stripes, achieving both replication and sharing of data between disks. [3] The usable capacity of a RAID 01 array is the same as in a RAID 1 array made of the same drives, in which one half of the drives is used to mirror the other half.

6. Disk array controller - Wikipedia

   en.wikipedia.org/wiki/Disk_array_controller

   It often implements hardware RAID, thus it is sometimes referred to as RAID controller. It also often provides additional disk cache . Disk array controller is often ambiguously shortened to disk controller which can also refer to the circuitry responsible for managing internal disk drive operations.

7. Buffalo network-attached storage series - Wikipedia

   en.wikipedia.org/wiki/Buffalo_network-attached...

   The Buffalo TeraStation network-attached storage series are network-attached storage (NAS) devices. The current lineup includes the LinkStation and TeraStation series. [ 1 ] These devices have undergone various improvements since they were first produced, and have expanded to include a Windows Storage Server-based operating system.