第 7 章 管理数据丢失

流程

1. 要限制复制数据丢失，请移除其复制拓扑片段，断开所有受影响的副本与拓扑的其余部分的连接。

   1. 显示不是中的所有 domain 复制拓扑段。

      [root@server ~]# ipa topologysegment-find
      Suffix name: domain
      ------------------
      8 segments matched
      ------------------
        Segment name: segment1
        Left node: server.example.com
        Right node: server2.example.com
        Connectivity: both
      
      ...
      
      ----------------------------
      Number of entries returned 8
      ----------------------------

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   2. 删除所有涉及到受影响服务器的 domain 拓扑段。

      [root@server ~]# ipa topologysegment-del
      Suffix name: domain
      Segment name: segment1
      -----------------------------
      Deleted segment "segment1"
      -----------------------------

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   3. 对涉及任何受影响的服务器的任何 ca 拓扑段执行同样的操作。

      [root@server ~]# ipa topologysegment-find
      Suffix name: ca
      ------------------
      1 segments matched
      ------------------
        Segment name: ca_segment
        Left node: server.example.com
        Right node: server2.example.com
        Connectivity: both
      ----------------------------
      Number of entries returned 1
      ----------------------------
      
      [root@server ~]# ipa topologysegment-del
      Suffix name: ca
      Segment name: ca_segment
      -----------------------------
      Deleted segment "ca_segment"
      -----------------------------

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2. 受数据丢失影响的服务器必须被取消。要创建替换副本，请参阅使用复制恢复多个服务器。