What parameters does DOCMOUNT use when it calls the MOUNT command

/***********************************************************/ 
/* MOUNT NFS DRIVE OVER SELECTED IFS DIRECTORY USING NFS SHARE */ 
/* WE USE THE DEFAULT OPTIONS SUGGESTED BY IBM WHEN RUNNING */ 
/* THE MOUNT COMMAND INTERACTIVELY, EXCEPT WE SOFT MOUNT */ 
/***********************************************************/ 
MOUNT TYPE(*NFS) MFS(&FILESYSTEM) + 
MNTOVRDIR(&IFSDIR) + 
OPTIONS('rw,nosuid,retry=5,rsize=8096,wsize+
=8096,timeo=20,retrans=2,acregmin=30,acregm+
ax=60,acdirmin=30,acdirmax=60,soft') + 
CODEPAGE(*BINARY *ASCII) 

The MFS parameter must be of the form hostname:pathname where hostname can either be the name of a system or an IP address, and pathname must be an absolute path name.