RAID implementation

RAID implementation improves data storage reliability and performance.

Redundant array of independent disks (RAID) is a method of configuring multiple drives in a storage subsystem for high availability and high performance. The collection of two or more drives presents the image of a single drive to the system. If a single device failure occurs, data can be read or regenerated from the other drives in the array.

RAID implementation provides fault-tolerant data storage by storing the data in different places on multiple drives. By placing data on multiple drives, I/O operations can overlap in a balanced way to improve the basic reliability and performance of the attached storage devices.

Usable capacity for the storage system can be configured as RAID 6, or RAID 10. RAID 6 can offer excellent performance for some applications, while RAID 10 can offer better performance for selected applications, in particular, high random, write content applications in the open systems environment.

RAID 6 is the recommended and default RAID type for all drives over 1 TB. RAID 6 and RAID 10 are the only supported RAID types for 3.84 TB Flash Tier 1 drives and 1.92 TB, 7.68 TB, and 15.36 TB Flash Tier 2 drives.