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KB9746 - How to use the cluster trouble shooter tool

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Last Modified Date8/14/2015 2:13 PM
Synopsis
This article outlines how to use the cluster trouble shooter tool to help identify communication issues between clusters or a cluster  and a member.
Problem or Goal
Cause
Solution

The cluster troubleshooter tool is used to verify that nodes in a cluster or potential cluster members can communicate with the problem cluster.  To use the tool, enable the troubleshooting server on the primary cluster, the node that is to be communicated with.  The existing cluster node will communicate with the primary node through the troubleshooting server. 

There are two scenarios when the tool can be used:

  1. With nodes in an existing cluster 
  2. With potential nodes in a new cluster

 

How to use the tool for both a New Cluster and Existing Cluster:

 

note: For a new cluster, the cluster must be created on one node to be able to run the troubleshooter (the tool can only be run from a member of a cluster). Jump to New Cluster

Existing Cluster:

  1. Select the node that you want to use as the troubleshooting server (the one you want to communicate with), this will be referred to as the Problem node.  To enable the troubleshooting server the Problem node must be disabled from the cluster status page. To disable the node:
     
    • Login to the PCS as an administrator and navigate to: Clustering > Cluster Status

      status 
  2. Select the checkbox next to the Problem node you want to disable, and click on the disable button. This will disable the node from the cluster. For this example, Philip is the problem node.

    disable
 
  1. Once the Problem node has been disabled from the cluster, you can turn on the troubleshooting server option. 
     
    • Login to the disabled Problem node directly by navigating via a web browser to the internal/external IP address of the node.
  2. After logging in as an administrator, navigate to Troubleshooting > Cluster > Network Connectivity

    troubleshooter 
  3. Under the Troubleshooting Server section, check-mark the option Enable cluster network troubleshooting server

    enable
  4. Click Save Changes
  5. Login to the active node in the cluster and navigate to Troubleshooting > Cluster > Network Connectivity
troubleshooter
 
  1. Under the Troubleshoot node section, select the Problem node member, the node that the troubleshooting server option has been enabled on, from the dropdown menu and click on the Go button

    test
 
  1.  This will test the cluster communication between the two nodes, and give one of two results:
     
    • The node is reachable

      reachable

New Cluster:
  1. Login as an administrator to the node that is not currently part of the cluster (the new node to be communicated with). This node will be referred to as new node.  To enable the troubleshooting server:
     
    • Navigate to: Troubleshooting > Cluster > Network Connectivity

      troubleshooter
  2. Under the Troubleshooting Server section, select the check box next to Enable cluster network troubleshooting server

    enable
 
  1. Click Save Changes
  2. Once the troubleshooting server is enabled (on the new node that hasn't joined the cluster yet), login to the other node (the node where the cluster has been created) as an administrator and navigate to: Troubleshooting > Cluster > Network Connectivity
troubleshooter  
  1. Under the Troubleshoot node section, enter the IP address of the new node and click on the Go button

    standalone
  2. This will test the cluster communication between the two nodes, and give one of two results:
     
    • The node is reachable

      reachable2
Related Links
Attachment 1 
Created ByData Deployment

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