60 IBM BladeCenter PS700, PS701, and PS702 Technical Overview and Introduction
For more information about InfiniBand, read HPC Clusters Using InfiniBand on IBM Power
Systems Servers, SG24-7767, available from the following Web page:
http://www.redbooks.ibm.com/abstracts/sg247767.html
The 4X InfiniBand DDR Expansion Card is a 2 port CFFh form factor card and is only
supported in a BladeCenter H chassis. The two ports are connected to the BladeCenter H I/O
switch bays 7 and 8, and 9 and 10. These switch bays require a supported InfiniBand switch
module to provide either external or blade to blade within the same chassis communication.
2.6.4 Embedded SAS Controller
The embedded SAS controller is connected to one of the 64-bit PCI-X 2.0 buses on the GX+
multifunctional host bridge chip. The PS702 uses a single embedded SAS controller. More
information about the SAS I/O subsystem can be found in 2.9, “Internal storage” on page 65.
2.6.5 HEA ports
Each HEA port has its own connection to the GX+ multifunctional host bridge chip. The
connections are configured for 1 Gb operation. The HEA ports are part of the Integrated
Virtual Ethernet (IVE) subsystem. The IVE subsystem is described in 2.7, “Integrated Virtual
Ethernet” on page 61.
2.6.6 Embedded USB controller
The USB controller is connected to the 64-bit PCI-X 1.0 bus of the GX+ multifunctional host
bridge chip. This embedded USB controller provides support for four USB root ports. These
ports are connected to four USB busses on the BladeCenter midplane through two
connectors. Two of these ports are routed to the two AMM bays. The other two USB ports are
directed to the BladeCenter Media Tray, as shown in Figure 2-17 on page 61. The PS702
uses a single embedded USB controller.
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