8 Configuring Direct NFS Client for Oracle RAC Data Files

Direct NFS Client is an interface for NFS systems provided by Oracle.

• About Direct NFS Client Storage
  Direct NFS Client integrates the NFS client functionality directly in the Oracle software to optimize the I/O path between Oracle and the NFS server. This integration can provide significant performance improvements.
• Creating an oranfstab File for Direct NFS Client
  If you use Direct NFS Client, then you must create a configuration file, oranfstab, to specify the options, attributes, and parameters that enable Oracle Database to use Direct NFS Client.
• Configurable Attributes for the oranfstab File
  You can configure various settings in the oranfstab file.
• Mounting NFS Storage Devices with Direct NFS Client
  Direct NFS Client determines mount point settings for NFS storage devices based on the configuration information in oranfstab. Direct NFS Client uses the first matching entry as the mount point.
• Specifying Network Paths for a NFS Server
  Direct NFS Client can use up to four network paths defined in the oranfstab file for an NFS server.
• Enabling Direct NFS Client
  You enable Direct NFS Client by running the enable_dnfs.bat command
• Performing Basic File Operations Using the ORADNFS Utility
  ORADNFS is a utility which enables the database administrators to perform basic file operations over Direct NFS Client on Microsoft Windows platforms.
• Monitoring Direct NFS Client Usage
  You use data dictionary view to monitor the Direct NFS client.
• Disabling Direct NFS Client
  You disable Direct NFS Client by running the disable_dnfs.bat command.