Describe the concept of RAID (Redundant Array of Independent Disks). What are some common RAID levels, and when should each be used?
Describe the concept of RAID (Redundant Array of Independent Disks). What are some common RAID levels, and when should each be used?
RAID, which stands for Redundant Array of Independent Disks, is a system that integrates multiple physical hard drives into a single logical unit to achieve a range of goals such as improved data redundancy, performance, and capacity expansion. RAID is divided into levels, each with its own set of advantages and applications. Here's an introduction to RAID and some common RAID levels:
The RAID concept:
RAID is the process of combining many hard drives into an array to achieve certain goals like fault tolerance, performance increase, or a mix of the two. RAID spreads data across multiple drives to offer redundancy or stripe data to improve read/write performance. RAID can be implemented in hardware (through RAID controllers) or software (via the operating system).
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