Acquiring telemetry data for iDRAC and Omnia
+++++++++++++++++++++++++++++++++++++++++++++

Using `Texas Technical University data visualization lab <https://idatavisualizationlab.github.io/HPCC>`_, data polled from iDRAC and Slurm can be processed to generate live graphs. These Graphs can be accessed on the Grafana UI.

Once ``discovery_provision.yml`` is executed and Grafana is set up, use ``telemetry.yml`` to initiate the Graphs. Data polled via Slurm and iDRAC is streamed into internal databases. This data is processed to create parallel coordinate graphs.

.. note:: This feature only works on nodes using iDRACs with a datacenter license running a minimum firmware version of 4.0.

**To access the grafana UI:**

    i. Find the IP address of the Grafana service using ``kubectl get svc -n grafana``

    .. image:: ../../images/grafanaIP.png

    ii. Login to the Grafana UI by connecting to the cluster IP of grafana service obtained above via port 5000. That is ``http://xx.xx.xx.xx:5000/login``

    .. image:: ../../images/Grafana_login.png

    iii. Enter the ``grafana_username`` and ``grafana_password`` as mentioned in ``input/telemetry_config.yml``.

    .. image:: ../../images/Grafana_Dashboards.png


**All your data in a glance**:

If ``idrac_telemetry_support`` and ``visualisation_support`` is set to true, Parallel Coordinate graphs can be used to view system statistics.

.. toctree::
    ParallelCoordinates


.. note:: The timestamps used for the time metric are based on the timezone set in ``input/provision_config.yml``. In the event of a mismatch between the timezone on the browser being used to access Grafana UI and the timezone in ``input/provision_config.yml``, the time range being used to filter information on the Grafana UI will have to be adjusted per the timezone in ``input/provision_config.yml``.