Network Health Check

Network Health is a diagnostics which allows you to check the status of each integrated storage API endpoint and resolve these issues via the OnApp user interface. The main diagnostics screen displays the disk health and node health statuses, with critical issues shown at the top and issues with minimal priority shown lower in the page.

Run diagnostic

To run a new diagnostic test:

  1. Go to your Control Panel > Storage > Diagnostics menu.
  2. Scroll to the bottom of the screen and click the New Diagnostic button. 
  3. A new diagnostic test will be successfully created.

This will create a new task that performs some long running actions. For details, click the date of the required diagnostics.

View the results of a particular diagnostics

  1. On the screen that appears, you will see the following diagnostics test details:

    • Date and time when the test was taken.
    • Status - test status.
    • Compute resource count - the number of compute resources inspected.

  2. Below you will find the further details: 

    • Connectivity matrix - connectivity matrix displays test results of each compute resource in the API endpoint zone. Click the check box next to the compute resource to view its connectivity matrixthen select the required tab:

    • Ping - view the compute resource's ping results. Pings are made from each compute resource to each other compute resource using following command ping -c 10 -s 1500 -M do 112.111.1.1 (pings are made on storage network), if any of the 10 pings did not succeed, the row that corresponds to this compute resource combination is considered to have failed.

      The green squares on the chart mean that compute resource can ping another compute resource. 

    • Big ping -  view the results of compute resource ping with maximum packets size (MTU size is defined in the CloudBoot compute resource settings). To make a big ping, the following command is used:  ping -c 10 -s MTU -M do 123.111.1.1 where MTU is substituted by the MTU value set for given compute resource during creation.The green squares on the chart mean that compute resource can ping another compute resource with MTU size packets. 


    • Bandwidth - view the compute resource's bandwidth test results.Bandwidth is measured from each compute resource to each other compute resource using the following command on source compute resource iperf -s -D and on target compute resource iperf -t60 -N -y C -c 112.111.1.1


      The compute resource bandwidth values are displayed on the chart. 

    • Activity log - activity log contains log messages of all actions that take place during the diagnostic test. Click the log item's Ref to view its details.

Delete diagnostics

To delete a diagnostics test:

  1. Go to your Control Panel > Storage > Diagnostics menu.
  2. Scroll to the Diagnostics table.
  3. Click the Actions icon next to the diagnostic test you want to remove, then choose Delete.
  4. Confirm the deletion.

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