Storage Area Network SAN

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Storage Area NetworkSAN

• Team Members
• Lee Kwok Chiu, Albert
• Tan Kin Hon, Terence
• Wong Siu Por, Paul

2
Fibre Channel Tutorial

• Concept of Nodes and Ports
• Nodes can be Hosts or Devices, the ports are
  the bus adapters.
• Nodes communicate via three possible
  topologies Point to point, Loop, and Fabric.

3
Storage Area Network (SAN)

• Servers
• HBA JNI, Qlogic, etc
• OS Solaris, AIX, NT, etc
• Switches
• Storage Arrays
• Tapes Libray
• Application
• Omniback, Netbackup
• Oracle, Sybase
• SAN Mgr LM/DM

4
A san configuration
SUNsolaris
IBM AIX
San Switches
SAN switches
Storage array
NT Server
San switches
Legend
HPUX servers
Linux servers
Fibre Channel
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San Components

• Server systems
• IBM(RS6000), SUN(E10000), HP(superdome), DELL)
• Storages Device
• EMC(Clarion), HDS(9900), IBM(shark), HP(xp1024)
• Fibre Channel Switches, hubs
• Brocade, Mac-data, Cisco
• Backup devices
• tape library (Storage Tech )
• Management backup software
• Veritas backup, HP openview, Legato, CA unicenter

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San Switches

• Hardware Features
• -8 16 port Fabric Switches.
• -Universal ports (E, F, FL)
• 1 Gb/s port speeds
• ( 2 Gb/s now)
• Hardware Port Zoning
• ISL Trunking
• -Hot-swappable, redundant cooling fan, power
  supply
• Management
• - telnet web browsing
• -12000 no single point of failure

SilkWorm 12000 (128 port core switches)
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Switch Management -using web browsing or telnet
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Why SAN SAN switches ?

• High Speed
• Using of Fibre channel switching technology.
• Full duplex bandwidth 1Gb/s, 2 Gb/s, 8 Gb/s
  using Trunking

• Cost effective
• Storage resource share
• Data is readily across the enterprise
• Improved Return on Investment (ROI)
• Centralized management
• High expandability, high scalability

• San Solution, the market trend !!
• Server Free backup and restore
• Clustering
• Business continuance Disaster recovery
• Fulfill business requirement

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SAN Solution Server-free back up Restore

• Traditional network with each server attached its
  tape library.
• Using single SAN tape library for backup.
• Backup is centralized and effective.
• Online data copies snapshot, and server
  downtime is minimized.

switches
Storage
Tape library
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San SolutionsClustering

• Redundant path available to storage device.
• No single point of failure.
• Non-disruptive maintenance and upgrade.
• Advantages
• Quick application dynamic failover is feasible.
• Transparent to users.
• 99.9 system availability.

Dual switches
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San SolutionsClustering (contd)
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SAN Solutions Business continuity and disaster
Recovery

• Losing Millions of dollars for hourly system
  outage.
• (Financial security firms, Stock Exchange)
• High Data system availability is extremely
  important !
• Non-stop !

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SAN Solution Business continuity and disaster
Recovery (cont.d)

• Mirror site set up using extended fabric (120
  KM), using
• DWDM (Dense-Wave Division Multiplexing)
• Extend wavelength GBIC
• SFP (small form Factor Pluggable interfaces)
• Using existing WAN Technology like ATM for long
  distance.
• Business operation resume within a short time
  during disaster.

ATM
DWDM
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ISL Trunking

• Advantages
• High bandwidth (8Gb/s)
• Load sharing
• In order frame delivery
• Link redundancy on need for re-routing if one
  link failure
• Simpler management
• Only one logical link between 2 switches.
• Use in between core switch in large scale SAN.

• What is ISL?
• ISL is link between 2 san switches, so call inter
  switching links.
• What is ISL Trunking?
• Combine 4 pyhsical ISLs into one single logical
  links.

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ISL Trunking

• Throughput of ISL no (trunking)(11.50.511)Gb/
  s 5 Gb/s

• Throughput of ISL trunking (1.51.50.512)Gb/s
  7 Gb/s

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SAN Security- Zoning

• Storage Area network devices arranged into
  specified logical groups.

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SAN Security- Zoning(contd)

• Advantages of zoning
• Partition storage area networks into logical
  groupings of devices.
• Flexible device can be member of more than one
  zone, like tape library.
• Controlled access barrier between different
  operating environment AIX, Solaris, hpux,
  win2000, Linux.
• Ease of monitoring
• Can telnet into san switches
• Using web browser.

• What is san zoning?
• Fabric-connected devices arranged into specified
  logical groups, devices can be members of
  multiple zone.
• Types zoning
• Port Zoning base on switch port (domain ID,
  number)
• WWN Zoning base on fibre channel cards World
  wide name which is similar to Mac address of
  Ethernet card.
• Mixed Zoning base on port WWN.

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SAN Security- Zoning example (with ISL trunking)
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SAN(storage area network) NAS (network attached
storage)
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SAN NAS (contd)
SAN Nas
Protocol a)Fibre Channel b)Fibre Channel Scsi TCP/IP
Applications -Mission-critical transaction-based database application -High Availability -Backup Restore -Business Continuance -Storage Consolidation -Server Consolidation Limited read only data base access File Sharing in NFS and CIFS -Small-block of data transfer over long distances
Advantages -Large, heterogeneous block data transfer -Data transfer reliability -Reduces LAN traffic -Configuration flexibility -High Performance -High Scalability -Centralized Management -Multiple Vendor offerings -Resilience to failure - Simpilied addition of files sharing capacity - Easy deployment and maintenance - Best for low-volume file sharing between multiple peer clients which are less sensitive to response times
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Thank You !!

• Questions if any ?