The
following example describes the steps you can use to replace the existing
I/O configuration data on a CPC. Use this procedure when the I/O configuration
for the CPC changes and you
must run IOCP.
- Update your IOCP input file to reflect your
new I/O configuration.
- Run IOCP with JCL statements to
validate the IOCP statements you updated in Step 1.
In the PARM parameter of the EXEC statement, use the WRTCDS=NO option.
- If there are any errors in the IOCP statements, correct the errors
and rerun IOCP (Step 2).
- Analyze the IOCP configuration reports (produced in Step 2)
to ensure that you have defined the I/O configuration that you
want. If necessary, revise the IOCP statements and rerun IOCP
(Step 2).
- Run IOCP using JCL statements that specify a write option (WRTCDS=Ax).
IOCP writes the specified IOCDS to the Support Element hard disk.
The system operator must respond YES to IOCP message ICP050D before
IOCP writes to the Support Element hard disk.
- Update your z/VSE® IPL
procedure ($IPL...) to reflect the changes you made to the IOCP input
file.
- Perform a power-on reset of the CPC with the appropriate IOCDS
specified as the source of your configuration data. Click Disable
Write Protection under Options on
the Input/Output Configuration window of the Support Element to remove
write protection.
- Test the new configuration.