A disk array is an enterprise storage system which contains multiple disk drives. It is differentiated from a disk enclosure in that an array has cache and intelligence so that it can perform functions like RAID and virtualization.

Components of a typical disk array include:

• Disk array controller
• Cache
• Disk enclosures
• Power supply

Typical disk arrays fall into four categories:

• Network attached storage (NAS) arrays:
  • HP ProLiant® Storage Server
  • Network Appliance Filer
  • Coraid EtherDrive®

• Modular storage area network (SAN) arrays:
  • Infortrend EonStor / EonRAID family
  • EMC CLARiiON
  • HP Storageworks EVA family products
  • Hitachi Thunder, Lightning and TagmaStore USP family products
  • IBM TotalStorage Enterprise Storage Server (ESS) models: 750 and 800
  • Sun StorEdge 99xx (9970, 9980, 9985, 9990)
  • Xiotech Magnitude 3D

• Monolithic storage area network (SAN) arrays:
  • Infortrend EonStor / EonRAID family
  • EMC Symmetrix
  • HP XP

• Utility Storage storage area network (SAN) arrays:
• Pillar Data Systems. Axiom
  • 3PAR InServ

Rotating disc computer storage media | Computer storage

Disk Array | ディスクアレイ | Macierz dyskowa | 磁盘阵列