
Chapter 3. Technical description of the hardware architecture 55
Table 3-2 Supported CIOv PCI-e Expansion Cards
3.8.3 Universal Serial Bus (USB) subsystem
The USB bus connects USB devices to a USB host. The USB buses used in the
BladeCenter chassis conform to the Universal Serial Bus 2.0 specification.
The IBM BladeCenter JS23 and JS43 Express uses the USB subsystem for
shared resources such as keyboard, mouse, CD-ROM and floppy drive USB
devices between the processor blades. These devices are connected to the
processor blades via the Mid-plane.
The USB bus routed to the Management Module is used for the keyboard on the
IBM BladeCenter JS23 and JS43 Express. This allows the Management Module
to connect the keyboard to the IBM BladeCenter JS23 and JS43 Express, and
control the routing of keyboard inputs to one of fourteen blades installed in a
BladeCenter chassis.
The other USB bus is routed to the Media Tray, which connects to the DVD-ROM
drive and diskette drive. Both USB busses are controlled by the Management
Module independent of each other. This provides the capability to assign the CD
and floppy disk drive to one blade while the keyboard is assigned to another
blade. However, it does not restrict the assignment of shared resources of both
USB buses to a single IBM BladeCenter JS23 or JS43 Express.
Mellanox 4X Infiniband Dual Port
DDR Expansion Card
8258 AIX, Linux
Qlogic 8Gb FChannel 8271 Linux
FRU Name Feature Supported OS
Emulex 8Gb Fibre Channel
Expansion card
8240 AIX, Linux, IBM i
QLogic 4Gb FC Expansion
Card
8241 AIX, Linux, IBM i
Qlogic 8Gb Fibre Channel
Expansion card
8242 AIX, Linux, IBM i
3Gb SAS Passthrough
Expansion Card
8246 AIX, Linux, IBM i
FRU Name Feature Supported OS
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