Disk array
A disk array is a
.Components of a disk array include:[2]
- Disk array controllers
- Cache in form of both volatile random-access memory and non-volatile flash memory.
- Disk enclosures for both magnetic rotational hard disk drives and electronic solid-state drives.
- Power supplies
Typically a disk array provides increased availability, resiliency, and maintainability by using additional redundant components (controllers, power supplies, fans, etc.), often up to the point where all single points of failure (SPOFs) are eliminated from the design.[3] Additionally, disk array components are often hot-swappable.
Traditionally disk arrays were divided into categories:[2]
- Network attached storage(NAS) arrays
- Storage area network (SAN) arrays:
- Modular SAN arrays
- Monolithic SAN arrays
- Utility Storage Arrays
- Storage virtualization
Primary vendors of storage systems include
OEM for the above vendors and do not themselves market the storage components they manufacture.[1]
References
- ^ a b Beal, Vangie. "What is Disk Array Definition? Webopedia Definition". www.webopedia.com. Retrieved 2020-04-07.
- ^ a b "What Is a Storage Array? Data Server and Disk Architecture". DNSstuff. 2019-10-10. Retrieved 2020-04-07.
- ^ "What is disk array? - Definition from WhatIs.com". SearchStorage. Retrieved 2020-04-07.