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Optimizing NFS directory access for CIFS clients
You can optimize CIFS client access to an NFS directory by configuring Data ONTAP to convert non-Unicode directories to Unicode format when either CIFS clients or NFS clients access directories and create only Unicode-formatted directories, thereby eliminating the need to convert formats.
About this task 
Note: If you intend to share files between CIFS and NFS clients, configure Data ONTAP to create directories in Unicode format immediately after installing Data ONTAP. This will to ensure that all new directories are created in Unicode format.
When you first install Data ONTAP, directories created by NFS clients are created in non-Unicode format and directories created by CIFS clients are in Unicode format. Because of this, CIFS directories are directly accessible to NFS clients, but NFS directories are not directly accessible to CIFS clients. To provide a CIFS client with access to an NFS directory, your storage system must first convert the NFS directory to Unicode format. This is done automatically (“on the fly”), as the storage system receives the access request. Depending on the amount of data involved, Unicode conversion can take time and consume storage system resources.