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在Data ONTAP 7-模式中、CIFS.tcp_window_size的默认值、最小值、最大值和建议值是多少?

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data-ontap-8
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nas
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适用场景

  • Data ONTAP 8 7-模式
  • Data ONTAP 8.1 7-模式
  • Data ONTAP 8.2 7-模式

问题解答

在执行性能调整时、可能需要调整CIFS TCP窗口大小、因为TCP窗口大小控制一次可在存储系统和CIFS客户端之间传输的TCP消息的数量。本文介绍如何确定最佳TCP窗口大小、以及存储系统端和Windows客户端上TCP窗口大小的限制。

  • 如何查看/修改存储系统端的CIFS TCP窗口大小?
    运行以下命令以查看/修改在Data ONTAP 7-模式下运行的存储系统上的CIFS TCP窗口大小:
    Filer> options cifs.tcp_window_size
    • 此功能在重新启动CIFS或将新名称注册为NetBIOS别名时生效。如果不重新启动CIFS、则只有新注册的名称的窗口大小会发生更改。注册NetBIOS别名时、CIFS会查看控制器的注册表项options.cifsinternal.aliaswindowsize以获取要使用的值。每当创建NetBIOS别名时、此值都会更新、并使用的当时最新值cifs.tcp_window_size。此注册表值与的当前值分开维护 cifs.tcp_window_size
  • 的限制是什么cifs.tcp_window_size
    默认值= 17520字节
    最小值= 1600字节
    最大值= 8388608字节(8 M)

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