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什么是 NFSv3 挂载 "noac" 选项？

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适用于

ONTAP 9

解答

noac 选项是一个客户端选项，可用于禁用属性缓存。  默认情况下禁用此选项。  除非启用 NoAC 选项有非常具体的原因、否则 NetApp 技术支持不建议启用此选项。  NFS 属性缓存是文件和目录权限的本地缓存。  通过禁用此缓存、每次都必须进行新的查找以验证文件和目录权限。  如果启用此选项，则预期 IO 操作会增加、性能会降低。

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