IBM QS21 User Guide - Page 31
Installing, blade, server
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Chapter 3. Installing the blade server If you have options to install in the blade server, you should install them now. See Chapter 4, "Installing and removing replaceable units," on page 19 and the BladeCenter QS21 Problem Determination and Service Guide for further information, then continue with the instructions in this chapter. Installation guidelines The BladeCenter QS21 is a hot-swappable device: you can install or remove the blade server while the BladeCenter unit is running. Additionally, the BladeCenter QS21 can operate alongside different blade servers in the same BladeCenter unit. Attention: If you plan to remove a blade server and reinstall it, be sure to note the number of the bay that contains the blade server before you remove it. You must reinstall the blade server in the same bay from which it was removed. Reinstalling a blade server into a different bay than the one from which it was removed could have unexpected consequences, such as incorrect reconfiguration of the blade server. Some blade server configuration information and update options are established according to bay number. If you reinstall the blade server into a different bay, you might have to reconfigure the blade server. Statement 21: CAUTION: Hazardous energy is present when the blade server is connected to the power source. Always replace the blade cover before installing the blade server. For information about the design of the BladeCenter unit, including the hot-swap blade bays, see the documentation that comes with the BladeCenter unit. While you can install or remove the blade server without removing power from the BladeCenter unit, you must turn off the blade server before removing it from the BladeCenter unit. The maximum number of blade servers that the BladeCenter unit supports varies by the wattage of the power supplies that are installed in the BladeCenter unit. For more information about determining the power requirements for the blade server, see the IBM BladeCenter Power Module Upgrade Guidelines. Installing the BladeCenter QS21 © Copyright IBM Corp. 2006, 2008 15