This parameter
specifies whether the operator is to be allowed to override system
parameters contained in IEASYSxx members of parmlib. The YES operand
allows operator overrides. The NO operand causes overrides to be ignored.
If, however, NIP detects an incorrect parameter in an IEASYSxx member
in which OPI=NO applies, NIP ignores the OPI specification and prompts
the operator. OPI may be specified only in an IEASYSxx member;
it may not be specified by the operator.
OPI may be specified
either for individual system parameters or for the entire set of parameters.
The
following examples show how this can be specified:
IEASYSAA: MLPA=(00,01),SQA=(10,OPI=NO)
IEASYSBB: MLPA=(00,01),SQA=10,OPI=NO
For IEASYSAA,
the operator can override MLPA values but not the SQA value. For
IEASYSBB, however, the operator can override neither MLPA nor SQA
values.
When you specify OPI for individual system parameters,
you can use system symbols in the specified value. When you specify
OPI for the entire set of parameters, do not use system symbols in
the specified value.
Note: During system initialization, the system
first uses the IEASYS00 parmlib member to establish parameters, then
uses parameters from the operator or any other IEASYSxx parmlib member
(identified by the SYSPARM parameter in the LOADxx parmlib member,
the SYSPARM parameter in the IEASYMxx parmlib member, or the SYSP=xx
parameter) to replace established parameters or add new ones. The
OPI parameter in IEASYS00 carries over to any other IEASYSxx parmlib
member identified during the IPL. If you specify OPI=NO in IEASYS00
for an IPL, the parameters affected by the OPI=NO cannot be changed
by operator command during the IPL. Even if you use another IEASYSxx
parmlib member and specify OPI=YES for that SYSP=xx, the operator
cannot change any parameters affected by OPI=NO in IEASYS00.
:
In the following IEASYSxx parmlib members, the specification of CSA
and SQA in IEASYS00 will prevail for the life of the IPL even if the
operator uses SYSP=01 to select IEASYS01 for the initialization process:
IEASYS00: CSA=(100,OPI=NO),MLPA=(00,01),SQA=(10,OPI=NO)
IEASYS01: CSA=(100,OPI=YES),MLPA=(00,01),SQA=10
Value
Range: Not applicable
Default Value: YES
Associated
Parmlib Member: Not applicable