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split brain

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The split brain tag on WindowsForum.com covers discussions about split brain scenarios in SQL Server Always On Availability Groups, particularly when using two-node clusters with dynamic quorum. Users share experiences simulating network partitions by blocking node communication via firewall rules, and note that the cluster may not automatically take nodes offline. The tag focuses on troubleshooting and understanding cluster behavior during split brain conditions, with an emphasis on Windows Server and SQL Server high availability configurations.
  1. C

    No response in split brain scenario in availability group.

    have an availability group with two nodes with dynamic quorum. I want to simulate a split brain scenario. For this I have configured one inbound firewall rules per node. The rules each block the connection of the other node. I tested them by ping. The cluster manager detects network errors...
    • cheberdy
    • Thread
    • availability group cluster manager configuration database firewall network error node offline quorum split brain troubleshooting
    • Replies: 1
    • Forum: Windows Server Forums
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