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1 Storage Area Network SAN Team Members: Lee Kwok Chiu, Albert Tan Kin Hon, Terence Wong Siu Por, Paul.

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Presentation on theme: "1 Storage Area Network SAN Team Members: Lee Kwok Chiu, Albert Tan Kin Hon, Terence Wong Siu Por, Paul."— Presentation transcript:

1 1 Storage Area Network SAN Team Members: Lee Kwok Chiu, Albert Tan Kin Hon, Terence Wong Siu Por, Paul

2 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. P1P2P3 NODE PORTS N Port N Port Switch Point to Point N Port N Port N port N Port NL Port NL Port NL Port NL Port Loop F Port FL Port NL Port NL Port Hub Fabric E Port Switch

3 3 Storage Area Network (SAN) IBM SUN EMC FC-AL Hub HP SCSI HP Arrays & JBOD’s Tape Libraries Non-HP Linux HP-UX NT  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 4 A san configuration = Fibre Channel Legend San Switches NT Server IBM: AIX HPUX servers SUN:solaris Linux servers SAN switches Storage array San switches

5 5 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

6 6 San Switches SilkWorm 2400 (8 ports) SilkWorm 2800 (16 ports) 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 : no single point of failure SilkWorm (128 port core switches)

7 7 Switch Management -using web browsing or telnet

8 8 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 Servers Workstations LAN Clients Storage LANSAN SAN Manager 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

9 9 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. Tape library Storage switches

10 10 San Solutions:Clustering 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

11 11 San Solutions:Clustering (cont’d) T-Class V-Class Brocade 2800 High End Array e.g. XP 512 = SCSI = Fibre Channel Legend

12 12 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 !

13 13 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

14 14 ISL Trunking:  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.  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.

15 15 ISL Trunking: Throughput of ISL no (trunking)=( )Gb/s = 5 Gb/s Throughput of ISL trunking =( )Gb/s = 7 Gb/s

16 16 SAN Security- Zoning Storage Area network devices arranged into specified logical groups.

17 17 SAN Security- Zoning(cont’d) 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 card’s World wide name which is similar to Mac address of Ethernet card.  Mixed Zoning – base on port & WWN. 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.

18 18 SAN Security- Zoning example (with ISL trunking)

19 19 SAN (storage area network) & NAS (network attached storage) Clients Network Attached Storage Network Printers LAN Application Servers Database Servers File & Print Servers High-end Storage Arrays Mid-range Arrays & JBOD Secondary Storage (DLTs, etc.) SAN Fibre Channel Traditional Servers w/ attached Storage Fibre Channel Switches, Hubs, etc.

20 20 SAN &NAS (cont’d) SANNas 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

21 21 Thank You !! Questions if any ?


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