HP ProLiant SL2500 ISS Technology Focus, Number 13 - Page 1
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ISS Technology Focus Number 13 In this issue: » Outlet Control in HP Intelligent Power Discovery » HP EcoPOD 240a Environment Control System » Meet the Expert-Bill Whiteman » Recent publications ISS TechComm iTunes New posts are now available on Apple iTunes, either check your iTunes page or go to ours: iTunes page. Follow us: Like us: Outlet Control in HP Intelligent Power Discovery This article describes the Outlet Control feature of HP Intelligent Power Discovery (IPD). IPD solves major power distribution challenges: provisioning power to IT devices; monitoring and managing servers' real-time power use; and verifying power connections to critical servers. This article involves the latter. A common cause of server failure is human error when connecting power to servers' redundant power supplies. How IPD works Our IPD solution automatically discovers the rack installation of ProLiant G7 servers that use HP Common Slot Platinum Power Supplies. IPD includes Intelligent Power Distribution Unit (iPDU) cores with six monitored C-19 outlets, Intelligent Extension Bars with five monitored C-13 outlets, and IPD power cords with embedded RS-232 data lines. The iPDU core has an embedded management module that lets you access power topology information locally through the HP Intelligent PDU Management GUI or remotely using HP Insight Control software or SNMP. When administrators connect ProLiant servers to the IPD components, the iPDU cores immediately detect and communicate with each server's iLO device before the server is powered on. The iPDU cores and the iLO devices exchange identity data-hostname, IP address, and unique universal identification number-through the IPD power cords. This allows each iPDU to track the servers plugged into the Extension Bar outlets on each load segment (iPDU outlet). IPD is the only solution in the server industry today that automatically correlates server identity to power outlets. Power Cycle Control If you need to reset a server by cycling power to it, you must cycle the correct outlet(s) or you can shut down the wrong server. Also, if a server uses redundant power supplies, you have to cycle all power supplies simultaneously. Using the HP Intelligent PDU Management GUI or Insight Control remotely, you can view and control the status of all outlets on each load segment. The Control page of the management GUI (Figure 1) shows the Redundancy Control option and Power Control switch for each outlet. The Power Cycle Control column includes a switch that allows you to turn power on or off simultaneously to the redundant outlets for each server. By cycling redundant outlets simultaneously, the switch prevents boot errors and power supply errors when the server re-boots. The switch works similarly for a manually entered device, such as a third-party device, for which the device's UUID is properly matched to its outlets. When an iPDU running firmware v1.4 detects a non-IPD device on an outlet, an assisted