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如何在ONTAP 9中评估NFS导出策略？

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适用场景

  • ONTAP 9
  • NFS

问题解答

  • 当客户端尝试访问NFS命名空间且尚未缓存任何现有访问规则时、系统将评估导出策略
    • 在挂载期间、系统会先评估根卷导出策略、然后再评估卷或qtree策略
    • 除非卷策略为qtree且已启用qtree-exports、否则此后将评估该卷策略的所有访问权限
  • 评估策略时
    • 此过程会迭代、并在第一次匹配时停止
    • 处理客户端匹配时出错时、访问权限仅由上述规则决定
    • 评估完成后、将创建访问缓存条目
    • NAS层缓存将存储以下内容的更多名称服务信息
      • 主机名
      • 域名
      • netgroup
  • 可以订购规则来缓解名称服务可用性的变化
    • 以下每个组的顺序应从限制性最强到限制性最低进一步
      1. IP 地址
      2. 子网
      3. 主机名
      4. 域名
      5. netgroup
    • 客户端匹配字段还支持以逗号分隔的IP或主机名列表
      • 每次访问更改都可以位于一条线上
      • 允许对具有相同访问权限的客户端进行高效分组和评估

追加信息

 

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