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allaboutunix's avatar
allaboutunix
Level 6
9 years ago

Query regarding one vcs node down

Hi Team,

Please suggest, if I have 4 nodes and due to some network issue suddenly all 4 nodes down. 3 nodes came up but 1 node is not coming up.

So what would happen to vcs services.Does that run automatically or need to run it manually.

Please share the step by step activity.

Thanks.

Allaboutunix

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  • Marianne's avatar
    Marianne
    9 years ago
    Now we can start from scratch. What is the OS on your cluster nodes? If Unix/Linux, check contents of /etc/gabtab It should contain something like this : /sbin/gabconfig -c -n4 This means that vcs will only start with all 4 nodes seeded. Best not to change this number by manually seeding the nodes that are up: gabconfig -cx Then issue hastart. See this TN : http://www.veritas.com/docs/000041575 Best to read up about split brain and ways to prevent that with sufficient network redundancy and I/O fencing.

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  • Marianne's avatar
    Marianne
    Level 6
    9 years ago
    Now we can start from scratch. What is the OS on your cluster nodes? If Unix/Linux, check contents of /etc/gabtab It should contain something like this : /sbin/gabconfig -c -n4 This means that vcs will only start with all 4 nodes seeded. Best not to change this number by manually seeding the nodes that are up: gabconfig -cx Then issue hastart. See this TN : http://www.veritas.com/docs/000041575 Best to read up about split brain and ways to prevent that with sufficient network redundancy and I/O fencing.
  • allaboutunix's avatar
    allaboutunix
    Level 6
    9 years ago

    Could you please tell  me in which forum I have to write the query. This is for veritas cluster service product.

     

    Thanks..

  • Larry_Fine's avatar
    Larry_Fine
    Level 6
    9 years ago

    You will get a quicker and more appropriate response by posting to the appropriate product specific forum.  This is a forum for general community discussion and forum related issues.