Changes between Version 42 and Version 43 of Documentation/CGettingStarted


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Timestamp:
07/11/11 20:21:31 (8 years ago)
Author:
ssugrim
Comment:

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  • Documentation/CGettingStarted

    v42 v43  
    3232
    3333When you have successfully logged in, you can start an experiment using the [wiki:NodeHandler nodehandler]. First time users are '''highly''' encouraged to reserve time on a sandbox instead of the main grid, and start with the built-in ''Hello World'' experiment.
    34  * Prior to the experiment, users need to install the baseline image on the hard disks of the nodes. This process will soon be done by the system before a slot is approved so that users can directly start the experiment with their preferred image on the nodes
     34 * Before we begin using the nodes, it's a good idea to check their status first. This is done with the omf stat command.
     35   {{{
     36   username@console.sb2:~$ omf stat
     37   }}}
     38   This will typically produce a result like:
     39   [[Image(newhowto1.jpg)]]
     40   The node can be in 1 of 3 states:
     41
     42   || POWEROFF || Node is Available for use but turned off ||
     43   || POWERON || Node is Available and is on ||
     44   || NODE NOT AVAILABLE || Node is not Available for use||
     45
     46 * NOTE: It is recommended that the node be in the POWEROFF state prior to any imaging process. If the node is in the POWERON state you can use the omf tell command
     47   to get the node into the off state.
     48   {{{
     49   username@console.sb2:~$ omf tell offh all
     50   }}}
     51   If the node is in the NODE NOT AVAILABLE state, you may need to wait for it to recover the POWEROFF state (it some times requires a few moments for the service to sync up). If
     52   the node never comes out of the NODE NOT AVAILABLE state please contact an administrator.
     53
     54 * Prior to the experiment, users need to install the baseline image on the hard disks of the nodes. This is done with the omf load command
     55   {{{
     56   username@console.sb2:~$ omf load Topology ImageName
     57   }}}
     58   Where Topology specifies the set of nodes you wish to image, and !ImageName is the name of the image you with to load. The most common sandbox starting image command would look like
     59   {{{
     60   username@console.sb2:~$ omf load all baseline.ndz
     61   }}}
     62
     63
     64which will load all the nodes of sandbox 2 (toatling 2) with the [wiki:Documentation/SupportedImages baseline] image.
    3565
    3666[[Image(howto2.PNG)]]