Forum Discussion

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

Basics
business continuity
Case Study
Cluster Server
Troubleshooting
  • 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.
  • 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.