2) Create a new IPLCB (Initial Program Load Control
Block) tailored for ALDR-AIX’s use, based on
the IPLCB of the original running AIX instance.
The IPLCB is a data structure that contains all the
configuration information necessary for the kernel
initialization. The aldrEnable command significantly
trims the main OS’s IPLCB so that the repair image
will see only the limited amount of resources that it
can use. For example, running on only one hardware
thread, accessing a limited amount of memory, and not
being able to access any IO devices except the system
console.