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Starting the GRID

by zadmin last modified 2007-12-21 18:15

How to kickstart the GRID: running GRID Seed.

Before you begin:

  • You may download the latest GRID Seed release from:

http://euindia.ictp.it/download/GridSeed/

  • Notice: it is assumed that VMWare is already installed in your system; please refer to the following page for further instructions:

https://euindia.ictp.it/grid-seed/setup-host-machine

Starting the GRID Seed Virtual Machines:

To kickstart the grid you must follow a specific order when booting the variuos GRID services. First boot the central services, by launching the respective VM:

  1. Start the DNS virtual machine:

    ./start.sh -t DNS -c 1 -m 256

    A DNS is essetial due to the grid's GSI: hostnames must be fully qualified FQADN as they will be forward and reverse resolved. The DNS VM will also launch a Certification Authority to issue certificates.

  2. Start the VOMS virtual machine:

    ./start.sh -t VOMS -c 1 -m 256

    gLite GRIDS need a VOMS server to work; in fact, all other services need the public certificate of the VOMS server.

  3. BDII

    ./start.sh -t BDII -c 1 -m 256

  4. LFC

    ./start.sh -t LFC -c 1 -m 256

  5. WMS

    ./start.sh -t WMS -c 1 -m 256

Now you can install a User Interface host, where all GRID client commands are found:

  1. UI

    ./start.sh -t UI -c 1 -m 256

Finally, you launch as many GRID Sites as you want, by iterating over the following steps:

  1. CE

    ./start.sh -t CE -c 1 -m 256

  2. SE

    ./start.sh -t SE -c 1 -m 256

    Notice that you must supply the CE number which this SE is connected to: a menu will pop-up allowing you to choose the CE.

  3. WN

    ./start.sh -t WN -c 1 -m 512

    Notice that you must supply the CE number which this WN is connected to: a menu will pop-up allowing you to choose the CE. Repeat this step for as many WN connected to the CE as you want.

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