IBM HS21 User Guide - Page 41

10. If you removed a small-form-factor expansion card or a high-speed expansion card in step 6, reinstall it (see "Installing an I/O-expansion card"). If you have other options to install or remove, do so now; otherwise, go to "Completing the installation" on page 34. Installing an I/O-expansion card The following sections describe how to install an I/O expansion card in the blade server. The illustrations show installation of the I/O expansion cards in the system board: installing the cards in an expansion unit is similar. If the BladeCenter unit supports I/O expansion, you can add an I/O expansion card to the blade server. An I/O expansion card provides additional connections for communicating on a network. The blade server supports various types of I/O expansion cards. See http://www.ibm.com/servers/eserver/serverproven/compat/us/ for a list of available I/O expansion cards and their form-factor types. The following notes describe information that you must consider when installing I/O-expansion modules: v Some expansion cards are available as both small-form-factor cards and standard-form-factor cards. Other expansion cards are available only as standard-form-factor or high-speed cards. v The system board supports one I/O expansion card. The supported cards are the small-form-factor card, the standard-form-factor card, or the high-speed card. v If two hard disk drives are installed in the blade server, you can install only a small-form-factor expansion card or a high-speed expansion card. If only one drive is installed in the blade server, you can install any type of expansion card. v If an expansion unit is installed, you cannot install a high-speed expansion card in the blade server; however, some expansion units do support installation of additional I/O expansion cards. See the documentation for your expansion unit for information. v Small-form-factor and standard-form-factor expansion cards are not supported in the Blade Storage Expansion Unit 3, when a Memory and I/O Expansion Blade is installed. Make sure that the BladeCenter unit and the I/O modules to which the I/O expansion card is mapped support the network-interface type of the I/O expansion card. For example, if you add an Ethernet expansion card to a blade server in a Type 8677 BladeCenter unit, the I/O-modules in I/O module bays 3 and 4 on the BladeCenter unit must both be compatible with the expansion card. All other expansion cards that are installed in other blade servers in the BladeCenter unit must also be compatible with these I/O modules. In this example, you can then install two Ethernet switch modules, two pass-thru modules, or one Ethernet switch module and one pass-thru module. Because pass-thru modules are compatible with a variety of I/O expansion cards, installing two pass-thru modules would enable the use of several different types of compatible I/O expansion cards in blade servers within the same BladeCenter unit. Chapter 3. Installing options 29