What is RAID and Raid 5 ,Raid 6 Types

Question

Accepted Answer

RAID stands for Redundant Array of Independent Disks. RAID 5 and RAID 6 are types of RAID configurations for data storage.

RAID (Redundant Array of Independent Disks) is a data storage virtualization 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 5 uses block-level striping with distributed parity. It requires at least three disks to implement and provides fault tolerance and increased performance.
RAID 6 is similar to RAID 5 but includes an additional parity block for greater fault tolerance. It requires at least four disks to implement and can withstand the failure of two drives simultaneously.
Both RAID 5 and RAID 6 are commonly used in enterprise storage environments to protect against data loss and ensure high availability.

Accepted Answer

Distributed Parity

Distributed parity, used in RAID 5, involves distributing both data and parity information across multiple drives. The parity information allows the recovery of data in case of a drive failure. However, write performance can be impacted due to the need to recalculate parity information during write operations.Double parity, employed in RAID 6, adds an extra layer of redundancy by using two sets of parity information. This provides increased fault tolerance, allowing the system to tolerate the failure of two drives simultaneously without losing data. RAID 6 offers higher data protection at the cost of additional storage overhead and potentially reduced write performance.

Accepted Answer

redundant array of inexpensive disks physical disk to multiple disk

raid 5 single parity minmum 3 hdd use one disk fail data is no lose mirroring and striping slow speed

raid 6 duble pairty minmum 4 hdd highy speed highy redadancy

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What is RAID and Raid 5 ,Raid 6 Types

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