Which of the following BEST describes RAID 1?
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A. B. C. D.A.
RAID (Redundant Array of Independent Disks) is a storage technology that combines multiple hard drives into a single logical unit to improve performance, availability, and fault tolerance. There are several types of RAID, including RAID 1, which is also known as disk mirroring.
RAID 1 uses two hard drives, where data is duplicated on both drives. This means that both hard drives contain identical copies of the same data, providing redundancy and fault tolerance. If one drive fails, the other drive can continue to function, and the system can rebuild the failed drive once it's replaced.
RAID 1 is a simple and reliable RAID configuration that is often used for mission-critical applications that require high availability and fault tolerance. However, it has some drawbacks, such as its relatively low capacity utilization, as half of the available storage is used for redundancy.
To summarize, RAID 1 is a disk mirroring technique that duplicates data on two hard drives to provide fault tolerance and high availability.