HP Integrated Lights-Out

Integrated Lights- Out ( iLO ) is a system developed by Compaq Lights-Out management system for administration and remote maintenance of servers. Through the acquisition of HP accounted for the Compaq name. About an additional network interface that either is on the server board directly or is provided by a plug-in card available, the iLO - chip can be connected to the network.


The functionality of the Lights- Out Management is constantly expanding with each new version. Thus, in the first versions were only basic functions such as the switching on and off of the hardware possible, whereas it is already possible with the current iLO firmware to read temperatures in the housing and the hardware ( Sea of ​​Sensors 3D) or to reduce the power consumption / limit ( Power Capping ). In addition to the standard iLO, which in most cases is HP servers already contain a license key for iLO Advanced can be purchased, which unlocks additional features.

In principle, one can speak of the following functions:

  • On and off of the server over the network
  • Management of the system board ( BIOS, controller settings, depending on the server system partly different)
  • Tools for system diagnosis
  • Temperatures read ( Sea of ​​Sensors )
  • Power Capping (not supported on all devices, see )
  • KVM functionality
  • Using iLO Advanced ( Rights ); Complete Server Remote Management - screen, keyboard and mouse will be made ​​available on the iLO web interface with popular web browsers via Java applet or become a stand-alone application for Windows systems. Even devices such as CD- ROM drives (or ISO images ) can be connected over the network so that a server can be installed completely over the network.


  • Clear and structured cabling the server
  • No KVM switches necessary
  • System -board setting, server monitoring and diagnosis without physical access to the system possible
  • On physically separate network card, so it can connect with a secure and separate from the actual network management network.


  • If the iLO, as usual, in some models, is on the first NIC, it may get interference, which can not be immediately associated with the failure of iLO. For example, there were times, the problem is that NFS packages were intercepted by iLO. In particular, when hardware and software administration are separated, such problems are very complex to solve.
  • As with all solutions that can service services running on NICs that are also used for data transfer, any security holes in the iLO can be exploited.

ILO Mobile App

Since the iLO version 3, it is possible to use the web interface rather than a smartphone app. Currently, there are the corresponding application for Apple iOS and Android smartphones / tablets.