March 2007 05

ILO/Lights out diagram

http://en.wikipedia.org/wiki/Lights_out_management or http://web.mac.com/martinmacleod/iWeb/Site/Blog/ilorib.pdf

Lights-out management (LOM) is the ability for a system administrator to monitor and manage servers by remote control regardless of whether the machine is powered on. A complete LOM system consists of a hardware component called the LOM module and a program that facilitates the continuous monitoring of variables such as microprocessor temperature and utilization. The program also allows for such remote operations as rebooting, shutdown, troubleshooting, alarm setting, fan-speed control, and operating system reinstallation.

I’ve done a rather basic diagram of the ILO on the back, basically on a standard server with a lights out/ilo port, you will have one network connection – the connection to allow users to connect to it, and another connection for your ilo, an administration connection. The idea being if your primary network connection failed or the server went down and you couldn’t connect to it, you log on using the ILO/lights out card.

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