Storage Area Network

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Storage Area Network

• Presented by
• Chaowalit Thinakornsutibootra 43650084
• Thanapat Kangkachit 43650126

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What is SAN?

• SAN -gt Storage Area Network
• Is a dedicated nework for sharing resources.
• Provides accelerated data access and supports
  advanced shortage management.

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Problem

• The limitations loom over surge data
• The rise of client networking, data-centric
  computer applications and electronic
  communication applications
• Parallel SCSI bus is imposing severe limits on
  network storage.

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Problem

• Impending limitations of existing server
  connectivity
• Bandwidth to service clients and maintain data
  availability
• Scalability for long term, rapid grow
• Flexibility to provide optimim balance of server
  and storage capacity
• Manageability for ease of installation and
  maintainablity

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The solution SAN

• Is a platform which interconnects servers and
  storage at Gigabuad speeds.
• Combining LAN networking models with core
  building blocks of server performance and
  massstroage capacity.

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Benefits

• Is a platform which interconnects servers and
  storage at Gigabuad speeds.
• Combining LAN networking models with core
  building blocks of server performance and
  massstroage capacity.

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The solution SAN

• Is a platform which interconnects servers and
  storage at Gigabuad speeds.
• Combining LAN networking models with core
  building blocks of server performance and
  massstroage capacity.

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SAN Architecture

• The SAN architecture uses the Fibre Channel (FC)
  interface to provide flexibility that allows the
  SAN to do storage networking.

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What is Fibre Channel?

• Fibre Channel is an industry-standard interface
  adopted by the American National Standards
  Institute (ANSI) and International Organization
  for Standardization (ISO). Fibre Channel
  transports data at 100 Mbytes (1 gigabit) per
  second. In addition, Fibre Channel supports
  high-speed system and network interconnects using
  a wide variety of popular protocols, including
  TCP/IP, FDDI, and ATM, as well as SCSI.

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Fibre Channel Layer

• Physical Layer
• FC-0 defines physical media and transmission
  rates. These include cables and connectors,
  drivers, transmitters, and receivers.
• FC-1 defines encoding schemes. These are used to
  synchronize data for transmission.
• FC-2 defines the framing protocol and flow
  control. This protocol is self-configuring and
  supports point-to-point, arbitrated loop, and
  switched topologies.

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Fibre Channel Layer

• Upper Layers
• FC-3 defines common services for nodes. One
  defined service is multicast, to deliver one
  transmission to multiple destinations.
• FC-4 defines upper layer protocol mapping.
  Protocols such as FCP (SCSI), FICON, and IP can
  be mapped to the Fibre Channel transport service.

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SAN Component
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SAN Interconnect
Host Bus Adapter
Cable and Connector
Hubs and Switches
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Topology

• Point - To - Point
• Fibre Channel -Arbitrated Loop
• Fibre Channel Switching

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Point - To - Point

• topology consists of a single connection between
  two nodes. All the bandwidth is dedicated for
  these two nodes.

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Fibre Channel -Arbitrated Loop

• In the loop topology, the bandwidth is shared
  between all the nodes connected to the loop. The
  loop can be wired node-to-node.This is overcome
  by using a Fibre Channel hub. This Topology
  resembles Token Ring or FDDI

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Fibre Channel Switching

• A Fibre Channel switching topology uses either a
  single Fibre Channel hub or switch or multiple
  interconnected switches and hubs to facilitate
  communications between nodes.

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Comparing Fibre Channel Topologies
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Design and Case Study
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Traditional Storage Network System
Workstation
Tape Library
Ethernet Switch
Workstation
Workstation
Server
Disk Array
Workstation
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Storage Area Network
Server
FC Switch
Ethernet Switch
Hub
Workstation
Disk Array
Tape Library
Workstation
Workstation
Workstation
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Case Study Video Editing
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Case Study ISP
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SAN Management

• Seperates into 3 class
• SAN Storage Level
  
  
  
  
• SCSI Enclosure Service (SES)
• SAN Network Level
• Simple Network Management Protocol (SNMP)
• SAN Enterprise Systme
• Web Based Enterprise Management (WBEM)
• Common Interface Model (CIM)

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SAN Benefits

• Pooling Solution
• Disk pooling and Tape pooling

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SAN Benefits

• Server Clustering

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SAN Benefits

• Backup and Recovery solutions
• LAN-less data movement

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SAN Benefits

• Disaster Backup and Recovery

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Next Generation of SANs

• 2 Solutions
• Fiber Channel Over IP or Storage tunnelling
• SAN over IP

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SAN over IP

• The SoIP BluePrint

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Fiber Channel Over IP

• Encapsulate FC frame into IP frame

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SAN over IP

• SoIP Switch Traffic flow

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SAN over IP

• Natvie IP SANs

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Any question ?