Types of RAID levels RAID 0,RAID 1, RAID 5, RAID 6, RAID 10,
RAID, short for redundant array of independent disks is a disk subsystem that stores your data across multiple disks to either increase the performance or provide fault tolerance to your system.
RAID is a technology that is used to increase the performance and data storage. RAID system consists of two or more drives working in parallel. it can be hard discs, and also use the technology for SSD.
There are different RAID levels, each optimized for a specific situation, and there are two ways of implementing the system. Hardware RAID & Software RAID.
Hardware raid is directly managed by a dedicated hardware controller to which the disks are connected.
Software RAID is part of the OS and is the easiest and most cost effective implementation.
You have to consider about features when choosing the right server for your business is whether to enable RAID on your system, but more importantly, what type of RAID to choose which is fit your technical needs.
RAID 0 – striping
RAID 1 – mirroring
RAID 5 – striping with parity
RAID 6 – striping with double parity
RAID 10 – combining mirroring and striping.
RAID 0 uses disk striping to provide high data throughput, especially for large sized files in an environment where no data redundancy required.
RAID 1 uses disk mirroring so that data written to one physical disk is simultaneously written to another physical disk. RAID 1 is good for databases application or other applications that require small disk capacity, but also require complete data redundancy.
RAID 5 uses disk striping and parity data across all physical disks to provide high data throughput and data redundancy. This is required for small random access of data.
RAID 6 is an extension of RAID 5 with an additional parity block. RAID 6 uses block-level striping with two parity blocks distributed across all member disks. RAID 6 provides protection against double disk failures, and failures while a single disk is rebuilding. In a scenario where you are using only one array, deploying RAID 6 is more effective than deploying a hot spare disk.
RAID 10, a combination of RAID 0 and RAID 1, uses disk striping across mirrored disks. It provides high data throughput and complete data redundancy.
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