Use to specify the volume or portion of a storage device where the TCP/IP configuration files are to be created. This parameter, along with the data set name, identify the specific location where the TCP/IP configuration files will reside.
Rules:
The maximum length is six characters.
All characters must be either alphanumeric or national (A to Z, 0 to 9, $, @, or #).
The default will be NULL, which allows for the possibility of creating the data sets on a nonspecific volume if your system is setup to allow for nonspecific volume requests.