HP LH4r HP Netserver LH 3000 Rack Cabling Guide - Page 58

Chapter 3 Procedure for Connecting and Routing Cables to the LH 3000r 4. Loop extra lengths of cable and tie-wrap it alongside the NetServer. Use Cable Guides on the column of the rack to route cables to their destinations. 5. If you use hook-and-loop straps, tighten each of them to ensure they support the cables correctly. Slide the NetServer in carefully making sure cables do not bind, adjust cables and straps as necessary. Repeat until the Cable Management Arm extends and retracts smoothly. 6. Secure the server to the front of the rack with screws and rack nuts and replace the bezel. See the HP NetServer LH 3000/3000r Installation Guide for details. Step 5: Powering Up and Powering Down the Components in the Rack Follow the Power Up Sequence to minimize inrush currents and prevent breakers from tripping. Power Up Sequence 1. Power on peripherals one at a time, beginning with the tape back-up unit, continuing with the mass storage units, monitor, and the rest. 2. If an HP Console Switch is present, it must be on before the server is powered on. Otherwise the server will not detect all the required components and will likely report an error. 3. Lastly, power on one server at a time, waiting for fan units in one to spin up before powering on the next (if more than one is present in the rack). Power Down Considerations To power off the equipment, ensure that network users are properly warned. No specific order is necessary when powering off rack-optimized servers and associated components. However, to do so in an orderly way, you should bring down the operating system, then power off peripherals, then turn off servers. WARNING The HP NetServer LH 3000r is connected to standby power even when power is turned off. Do not open the system for maintenance except if you have removed the power cord. 54