SYSOPT parameter

System options

Summary

Default value

128 (X'80')

Parameter type

System

Where set

• In z/OS, the SYSOPT parameter must always be set via the PARM field in the EXEC card (see Specifying EXEC statement parameters), using the parameters passed by the operating system when Model 204 is invoked.
• In z/VM, the SYSOPT parameter is stacked in the EXEC that issues all the FILEDEFs.
• In z/VSE, the SYSOPT parameter is passed in the UPSI statement.

Related products

All

Introduced

Model 204 V6.1 or earlier

Description

Specifies the system options.

Valid settings of SYSOPT are (options can be summed):

Hex setting	Decimal setting	Meaning
X'80'	128	Write to audit trail and/or journal.
X'40'	64	Force an ABEND without a dump at termination when the return code is not zero.
X'20'	32	Include RK lines in the audit trail and/or the journal.
X'10'	16	Require login.
X'08'	8	Perform DISCONNECT during logout (not effective for terminals connected to Model 204 through CRAM).
X'04'	4	Execute Model 204 data definition commands within a particular run of Model 204 only through the File Management facility of Dictionary.
X'02'	2	Open CCAGRP for use of permanent file groups.
X'01'	1	Open CCASYS during initialization

Setting option 4 restricts the use of Model 204 data definition commands within a particular Model 204 run. When the SYSOPT value includes option 4, the following commands can be executed only through the File Management facility of Dictionary/204:

Commands restricted by option 4
CREATE FILE	SECURE FILE
INITIALIZE	DESECURE FILE
DEFINE FIELD	INCREASE
REDEFINE	DECREASE
DELETE FIELD	RESET
RENAME FIELD

The RESET option also restricts the resetting of any resettable file parameters except FISTAT. The following resettable file parameters are restricted:

Command restriction by the RESET option
BRESERVE	PRCLDEF
DRESERVE	ADDLVL
FOPT	READLVL
FRCVOPT	SELLVL
OPENCTL	UPDTLVL
PRIVDEF	VERIFY

SYSOPT cannot be reset by the system manager.