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High Availability HA

Motivation. New TechnologyThe opportunity to create a clusterExploring with Linux Operating system. Overview. . High Availability Clusters (HA)How a cluster worksAdvantages of a clusterFuture SolutionApplications use. Clusters. A computer cluster is a group computers connected together throug

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High Availability HA

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    1. High Availability (HA)

    2. Motivation New Technology The opportunity to create a cluster Exploring with Linux Operating system

    3. Overview

    4. Clusters A computer cluster is a group computers connected together through special software and works together as one computer system. Clusters are viewed as a single computer. Connected through a Local Area Network (LAN)

    5. High Availability Clusters Are implemented primarily for the purpose of improving availability of services. They operate by having redundant nodes, which are used to provide service when a system components fail. Should have 99.9% uptime

    6. Requirements Fedora Core 4 Mpich-1.2.1 (Message Passing Interface) Two Nodes “master & slave” Network Switch Ethernet cables

    7. How Clusters work ? pppppppp

    8. Tests rcp cpilog node01:/home/Neal Mpirun –np 1 cpilog Mpirun –np 2 pmandel ? Xhost + ?

    9. With One Node [root@Master /]# mpirun -np 1 cpilog Process 0 running on Master pi is approximately 3.1415926535897634 wall clock time = 0.482186

    10. With Two Nodes [root@Master /]# mpirun -np 2 cpilog connect to address 172.16.0.100 port 544: Process 0 running on Master Process 1 running on Slave pi is approximately 3.1415926535899401, wall clock time = 0.262906

    11. Scope

    12. Advantages of (HA) High Availability Scalability Manageability

    13. Other Solutions The use of MOSIX PVM (Parallel Virtual Machine ) Clustermatic 5

    14. Future Works Configure a web server Develop a cluster that support more features Possible make a wireless cluster?

    15. References Cluster Definition: http://en.wikipedia.org/wiki/Computer_cluster PVM Information: http://www.csm.ornl.gov/pvm/ How to use PVM: http://www.csm.ornl.gov/pvm Cluster configuration: www.linuxjournal.com/node/5690/print Animated Siren: http://www.lsbu.ac.uk/water/equil.html Picture of a four node cluster: Jeremy and Matt’s PowerPoint presentation Types of Cluster Architecture: Linux Cluster Architecture: Alex Vrenios

    16. Questions ?

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