How to save an existing disk image from one node of a Testbed ¶

Getting Started ¶

1. Login into reserved domain

   Login into reserved domain ¶

   During your approved time slot, you will be able to ssh into the console of the respective domain. A console is a dedicated machine that allows access to all resources in that domain.

   For example, to access the sandbox1:

   yourhost>ssh username@console.sb1.orbit-lab.org
   
   Using username "username".
   Authenticating with public key "xxxxxxxxx"
   Welcome to Ubuntu 12.04.1 LTS (GNU/Linux 3.2.0-36-generic x86_64)
   
    * Documentation:  https://help.ubuntu.com/
   
     System information as of Mon Jan 28 20:25:50 EST 2013
   
     System load:  0.0               Processes:           93
     Usage of /:   2.7% of 69.43GB   Users logged in:     0
     Memory usage: 6%                IP address for eth0: 10.50.18.10
     Swap usage:   0%                IP address for eth1: 10.18.0.10
   
     Graph this data and manage this system at https://landscape.canonical.com/
   
   9 packages can be updated.
   0 updates are security updates.
   
   |-----------------------------------------------------------------|
   |                 *** For authorized use only ***                 |
   | This system is for the use of authorized users only.  All users |
   | are expected to comply with the "Acceptable Use Policy" availa- |
   | ble at http://www.orbit-lab.org/AUP.html                        |
   | Individuals using this computer system, are subject to having   |
   | all of their activities on this system monitored and recorded   |
   | by system personnel.                                            |
   |                                                                 |
   | Anyone using this system expressly consents to such monitoring  |
   | and is advised that if such monitoring reveals possible         |
   | evidence of criminal activity, system personnel may provide the |
   | evidence of such monitoring to law enforcement officials.       |
   |                                                                 |
   | Email question, comments or problems to help@orbit-lab.org      |
   |-----------------------------------------------------------------|
   
   username@console.sb1:~$ 
   

Checking the status ¶

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