how to get CpuID and diskid

You have those options:
1. you use $ZF(-1) or $ZF(100) to execute a command line from the OS
2. To use embedded python (if your version of IRIS has it) where you can use os. getpid() :
>Write $system.Python.Shell()
Python 3.9.5 (default, Jul  8 2023, 00:24:17) [MSC v.1927 64 bit (AMD64)] on win32
Type quit() or Ctrl-D to exit this shell.
>>> import os
>>> print(os. getpid())
16232