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Managing export policy caches

ONTAP uses several export policy caches to store information related to export policies for faster access. There are certain tasks you can perform to manage export policy caches for troubleshooting purposes.

  • Flushing export policy caches
    Flushing export policy caches manually (vserver export-policy cache flush) removes potentially outdated information and forces ONTAP to retrieve current information from the appropriate external resources. This can help resolve a variety of issues related to client access to NFS exports.
  • Displaying the export policy netgroup queue and cache
    ONTAP uses the netgroup queue when importing and resolving netgroups and it uses the netgroup cache to store the resulting information. When troubleshooting export policy netgroup related issues, you can use the vserver export-policy netgroup queue show and vserver export-policy netgroup cache show commands to display the status of the netgroup queue and the contents of the netgroup cache.
  • Checking whether a client IP address is a member of a netgroup
    When troubleshooting NFS client access issues related to netgroups, you can use the vserver export-policy netgroup check-membership command to help determine whether a client IP is a member of a certain netgroup.
  • Optimizing access cache performance
    You can configure several parameters to optimize the access cache and find the right balance between performance and how current the information stored in the access cache is.