I Raid ( Redundant Array of Independent Disks ) first patented by IBM in 1978, a computer system that uses a set of hard drives for share or replicate data.
The goal of these systems and to improve performance in terms of speed, integrity and security of data over a single hard drive.
In its simplest configuration, a RAID system allows you to configure a set of drives so that they are seen as a single logical unit by the operating system also
RAID, however, are subject to logical errors and physical damage they are also composed of hard disk drives.
There are different types of RAID:
- Raid 0 Raid 1 Raid 2
- Raid 3 Raid 4 Raid 5
- Raid Raid 6 7
- Raid 10 (1 +0)
- Raid 15 (1 +5)
The process of data recovery raid on systems is extremely complicated nature .... a little more information below ....
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