Chapter 2. Architecture and technical overview 61Figure 2-19 BladeCenter S I/O topology2.7.3 I/O expansion cardsI/O expansion cards can provide additional resources that can be used by a native operatingsystem, the Virtual I/O Server (VIOS), or assigned directly to a LPAR by the VIOS.See 1.6.7, “I/O features” on page 21 for details about each supported card.LAN adaptersIn addition to the onboard 2-port Broadcom BCM5709S Ethernet controller, Ethernet portscan be added with LAN expansion card adapters. The PS703 and PS704 support expansioncards with Ethernet controllers as listed in Table 1-8 on page 21.CIOv adapters require that Ethernet switches be installed in bays 3 and 4 of the BladeCenterchassis.CFFh expansion cards are supported in BladeCenter H and HT. The Broadcom 2/4-PortEthernet Expansion Card (CFFh) is also supported in the BladeCenter S. In the BC-H andBC-HT, the CFFh adapters require that Ethernet switches be installed in bays 7 and 9, andthe Fibre Channel ports to switch bays 8 and 10. In the BladeCenter S only the Ethernet portsare usable and the connection is to Bay 2.SAS adapterTo connect to external SAS devices, including the BladeCenter S storage modules, the 3 GbSAS Passthrough Expansion Card and BladeCenter SAS Connectivity Modules are required.Blade Server 6Blade Server 1 On-Board 1GbECFFhExpansion cardsI/O Bay 3I/O Bay 4 I/O Bay 1Standard I/O bays connectionsx4 SAS DSM connectionsI/O bays 3 & 4 Ethernet connectionsLegendMid-PlaneDSM1DSM2I/O Bay 2CIOv
