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Storage Area Networks and High-speed Storage Technologies

Connecting Storage Systems to Your Network

Introduction to Storage Area Networks (SAN)

  • SAN appears like a local drive to users
  • Operates as block-level access
  • Efficient for reading or writing information
  • Accessed across the network

High-speed Storage Technology: Fibre Channel

  • Connects servers and storage in a high-speed network
  • 2, 4, 8, and 16 gigabit per second rates
  • Operates over fiber optics or copper
  • Requires Fibre Channel switch

Connectivity with Fibre Channel: Initiators and Targets

  • Connect servers (initiators) to Fibre Channel switch
  • Connect to storage system (target)
  • Use SCSI commands or SATA commands
  • Provides locally connected drive experience

Fibre Channel over Ethernet (FCoE)

  • Allows Fibre Channel integration with existing infrastructure
  • Does not require special hardware
  • Operates within a single broadcast domain
  • Not sending routable information

iSCSI: Internet Small Computer Systems Interface

  • Networks SCSI communication using iSCSI
  • Manageable in software
  • Acts as a local drive
  • Drivers available for various operating systems

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