User guide

10 Implementing Cisco InfiniBand on IBM BladeCenter
򐂰 One slot for an I/O expansion adapter, either standard form factor (StFF) or small form
factor (SFF) design.
򐂰 Light Path Diagnostics on system board speeds recovery from individual blade server
failures.
򐂰 Integrated BMC management processor.
򐂰 Integrated SAS controller with support for up to two fixed 2.5inch SFF SAS hard disk with
support for RAID-0 and RAID-1.
Table 1-4 provides details of the features of the JS21.
Table 1-4 Features of the JS21
1.3 BladeCenter H networking architecture
Each BladeCenter chassis can support different types and quantities of I/O modules, and
each blade server in the chassis can be connected to the I/O modules by a number of ways.
This section gives you an overview of internal I/O architecture and supported combinations of
I/O modules and expansion cards for each chassis.
I/O modules can be grouped into several categories:
򐂰 Ethernet switch modules (which include both standard and high-speed Ethernet switch
modules)
򐂰 InfiniBand switch modules (which include standard and high-speed InfiniBand switch
modules as well as InfiniBand bridge modules)
򐂰 Fibre Channel switch modules (which include standard FC switch modules)
򐂰 Pass-through and interconnect modules (which include copper and optical pass-through
modules and the Multi-Switch Interconnect Module (MSIM)
The BladeCenter H chassis has two internal fabrics:
򐂰 High-speed fabric which is capable of carrying 10 Gbps Ethernet and 4X InfiniBand
򐂰 Standard fabric for Fibre Channel, Ethernet, and 1X InfiniBand (also known as low-speed)
The high-speed fabric is only when used you install a high-speed expansion card into a blade
server. This card has its own connectors to the midplane and a PCI Express socket on the
blade itself. The PCI Express connection is a 2.5 Gbps x4 connection, meaning it can support
10 Gbps connections.
Feature Specification
Processor PowerPC 970MP processors, 2.3 GHz - 2.7 GHz (processor speed varies by model
and also depends on the BladeCenter chassis the server is installed in)
Number of processors (std/max) 2 / 2
Memory 4 DIMM slots / either 400 MHz (PC2-3200) or 533 MHz (PC2-4200) DIMMs / 16 GB
maximum
Internal hard disk drives
(standard / maximum)
0 / 2
Network Two ports, Integrated Dual Gigabit Ethernet (
Broadcom 5780)
I/O upgrade 1 PCI-X expansion connector (supports standard and small form factor cards)