Overriding default attributes

To override the default attributes, specify different attributes with the mount command or in a file access or creation command (such as vi in AIX or UNIX).

There are two kinds of attributes that you can modify:

Data set creation attributes provide information about an MVS data set to the z/OS NFS server, such as:

The type of data set
How the data set is allocated

Note: Data set creation attributes do not apply to z/OS UNIX files.

Processing attributes provide information to the z/OS NFS server about how to handle the file. For example:

How long the files remain open
Whether the file contents are sent and received in text form, or in binary form to avoid ASCII/EBCDIC conversion

Use the showattr command to display the default data set creation and processing attributes. For descriptions of the attributes, see Initialization attributes for the z/OS NFS server.

Files are created and processed using the mount point attributes that were in effect when the files were last mounted. If your installation's default attributes have been changed (by way of the exportfs operand of the modify system operator command or restart of the server) and you want to apply these new default attributes, you can unmount and remount (using the umount and mount commands).

When you access the file with a data access or creation command, you can override some of the attributes that were set by a mount command or the server default settings.