Load an Image

1. Before we begin using the nodes, it's a good idea to check their status first. This is done with the omf stat command.

   omf stat

   This omf command is used to display the power status of the node/domain.

   Usage: omf stat

   username@consoles.outdoor:omf stat
   Returns the status of the nodes in a testbed
   Usage:
         omf-5.4 stat [-h] [-s] [-t TOPOLOGY] [-c AGGREGATE]
    
         With: 
         -h, --help                print this help message
         -s, --summary             print a summary of the node status for the testbed
         -c, --config AGGREGATE    use testbed AGGREGATE
         -t, --topology TOPOLOGY   a valid topology file or description (defaults to 'system:topo:all')
    
         Some Examples: 
                       omf-5.4 stat
                       omf-5.4 stat -s
                       omf-5.4 stat -t omf.nicta.node1,omf.nicta.node2 -c sb1
                       omf-5.4 stat -t system:topo:all -c grid
   

   Individual nodes are identified in the output of stat command by their fully qualified domain name (FQDN). This establishes their "coordinates" and the "domain" to which they belong. Nodes in different domains typically can NOT see each other. Node can be in 1 of 3 states:

   POWEROFF	Node is Available for use but turned off
   POWERON	Node is Available and is on
   NOT REGISTERED	Node is not Available for use

   Example: omf stat on the outdoor domain

   user@console.outdoor:~# omf stat -t all
   
    INFO NodeHandler: OMF Experiment Controller 5.4 (git 6d34264)
    INFO NodeHandler: Slice ID: default_slice (default)
    INFO NodeHandler: Experiment ID: default_slice-2012-10-14t14.42.15-04.00
    INFO NodeHandler: Message authentication is disabled
    INFO Experiment: load system:exp:stdlib
    INFO property.resetDelay: value = 210 (Fixnum)
    INFO property.resetTries: value = 1 (Fixnum)
    INFO Experiment: load system:exp:eventlib
    INFO Experiment: load system:exp:stat
    INFO Topology: Loading topology ''.
    INFO property.nodes: value = "system:topo:all" (String)
    INFO property.summary: value = false (FalseClass)
    INFO Topology: Loading topology 'system:topo:all'.
    Talking to the CMC service, please wait
   -----------------------------------------------
    Domain: outdoor.orbit-lab.org
    Node: node3-6.outdoor.orbit-lab.org   	 State: NOT REGISTERED
    Node: node3-3.outdoor.orbit-lab.org   	 State: POWEROFF
    Node: node2-10.outdoor.orbit-lab.org    State: POWEROFF
    Node: node1-10.outdoor.orbit-lab.org    State: POWEROFF
    Node: node1-8.outdoor.orbit-lab.org   	 State: POWERON
    Node: node1-6.outdoor.orbit-lab.org   	 State: POWERON
    Node: node3-2.outdoor.orbit-lab.org   	 State: POWEROFF
    Node: node3-1.outdoor.orbit-lab.org   	 State: POWEROFF
    Node: node1-3.outdoor.orbit-lab.org   	 State: POWERON
    Node: node3-5.outdoor.orbit-lab.org   	 State: POWEROFF
    Node: node2-5.outdoor.orbit-lab.org   	 State: NOT REGISTERED
    Node: node1-2.outdoor.orbit-lab.org   	 State: POWERON
   -----------------------------------------------
    INFO Experiment: Switching ON resources which are OFF
    INFO EXPERIMENT_DONE: Event triggered. Starting the associated tasks.
    INFO NodeHandler: 
    INFO NodeHandler: Shutting down experiment, please wait...
    INFO NodeHandler: 
    INFO run: Experiment default_slice-2012-10-14t14.42.15-04.00 finished after 0:6
   

2. It is recommended that the node be in the POWEROFF state prior to any experiment process. If the node is in the POWERON state you can use the omf tell command to get the node into the off state.
   Wiki page "Software/cOMF/eStatus" does not exist

For more details see OMF documentation If the node is in the NOT REGISTERED state, you may need to wait for it to recover the POWEROFF state (it some times requires a few moments for the services to sync up). If the node takes more than 60 seconds to come out of the NODE NOT AVAILABLE state please report it to an administrator.

4. Prior to the experiment, users need to install an image on the hard disks of the nodes. If you have not created a custom image use the default starting image: baseline.ndz. This image is built on top of Ubuntu 12.04, and is pre-configured with the proper modules and start up scripts to take advantage of the rest of the Orbit services / hardware.