The z/OS NFS client and server support applications running on z/OS V1R2 (and higher) in a native ASCII environment. Applications can operate on files in either EBCDIC or ASCII format, as well as other data formats defined with a coded character set identifier (CCSID). Native ASCII support is provided with a mechanism called file tagging where the file is defined with a tag to identify the CCSID to use for data conversion. File tagging is defined in the appropriate z/OS UNIX System Services documents. The z/OS NFS client and server provide the necessary support to provide data conversion between different CCSIDs specified for the client and server. The z/OS NFS client cln_ccsid and srv_ccsid parameters are also supported by the z/OS NFS server to identify the CCSID to be used in the data conversion. See Processing attributes syntax for more information about the cln_ccsid and srv_ccsid parameters.