ISTCOSDF start option


   .-ISTCOSDF--=--INDLU---------------.   
>>-+----------------------------------+------------------------><
   '-ISTCOSDF--=--+-ALL-------------+-'   
                  +-APPL------------+     
                  +-DEPLU-----------+     
                  +-INDLU-----------+     
                  +-NONE------------+     
                  '-(--+-APPL--+--)-'     
                       +-DEPLU-+          
                       '-INDLU-'

Specifies the resource types that can use the ISTCOSDF logmode entry. This entry is used when the logmode name specified for the session is not found.

You can change the value of ISTCOSDF with the MODIFY VTAMOPTS command while VTAM® is running.

ISTCOSDF=ALL

Indicates that the ISTCOSDF logmode entry will be used by the following resources:

Application programs
Dependent LUs
Independent LUs

ISTCOSDF=APPL

Indicates that ISTCOSDF is restricted to use by application programs.

ISTCOSDF=DEPLU

Indicates that ISTCOSDF is restricted to use by dependent LUs.

ISTCOSDF=INDLU

Indicates that ISTCOSDF is restricted to use by independent LUs.

ISTCOSDF=NONE

Indicates that the function is disabled.