Monday, December 12, 2011

HP Integrated Lights-Out (iLO)


Integrated Lights-Out, or iLO, is an embedded server management technology exclusive to Hewlett-Packard but similar in functionality to the Lights out management (LOM) technology of other vendors.
iLO is useful as an out-of-band management technology. The physical connection is an Ethernet port that can be found on most Proliant servers of the 300 and above series. This port can be enabled using the set-up utility which can be accessed with the F8 key during POST. In this screen an IP can be assigned via DHCP or static. It is also important to create a user so this utility can be accessed. Once the configuration has been done it has to be saved and the server needs to be restarted. To access the utility, be sure that a cable is connected to the iLO port on the back of the server. The iLO IP can be entered in the address bar of any web browser and a login screen will be shown; enter the username and password that has just been created.


iLO makes it possible to perform activities on an HP server from a remote location. The iLO card has a separate network connection (and its own IP address) to which one can connect via HTTPS. Possible options are:
reset the server (in case the server doesn't respond anymore via the normal network card)
power-up the server (possible to do this from a remote location, even if the server is shut down)
remote console (in some cases however an 'Advanced license' maybe required for some of the utilities to work)
mount remote physical CD/DVD drive or image.
access the server's IML (Integrated Management Log)
can be manipulated remotely through xml-based Remote Insight Board Command Language (RIBCL)
Full CLI support through RS-232 port (shared with system).
iLO provides some other utilities like virtual media (CD, floppy), virtual power and a remote console. iLO is always embedded on the System Board.

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