GFSA918I (procname)

Explanation
 The text1 specified
in the release, the listlock, or the unmount operand
of the modify command is not a valid name. For the release operand, only a valid MVS data set name
is allowed. 
For the listlock operand, only a valid MVS data set name
or a Unix filename is allowed. 
For the unmount operand, only a valid MVS data set name
or a Unix directory is allowed.

 In the message text:
 procname
The name of the start procedure.

System action
 NFS processing continues.

Operator response
 Specify the command again with a valid data
set name.