.-ADATA=NO--.   
>>-+-----------+-----------------------------------------------><
   '-ADATA=YES-'   

YES

associated data is written to the file defined by the SYSADATA DD statement (z/OS), the FILEDEF SYSADATA command (CMS), or the DLBL SYSADAT statement (z/VSE).

NO

no associated data is collected.

Default

ADATA=NO