Answer:
ILOM provides a user interface to manage the hardware - usually via a seperate controller - allows you to power on / off the machine remotely etc. can be accessed without the installed operating system running if necessary.
System Console - usually means (for want of a better word) the primary terminal of a system (not necessarily locally connected hardware)
sc> and lom> are two different prompt of the service processor (also known as system controller (sc) or light out manager (lom) )
Depending upon the hardware platform, you will have different service processor:
e.g.
LOM = Light Out Manager
ALOM = Adavanced Light Out Manager
SC = System Controller
ILOM = Integrated Light Out Manager
RSC = Remote System Controller
And also :
XSCF = eXtended System Controller Facility for Sparc M series.
Different names on different Sun boxes.
Notes:
The difference between ILOM, ALOM, SC, XSCF is hardware dependent. They're all variations of system controllers and with each comes slightly more options than the last.
