Cisco InfiniBand 4x User's Guide download pdf (Page 38)

24 Implementing Cisco InfiniBand on IBM BladeCenter

2.6.1 InfiniBand 4X DDR Pass-thru Module

With 14 InfiniBand 4X DDR ports towards the servers and 14 InfiniBand 4X DDR ports toward

the upstream network, the 4X InfiniBand DDR Pass-thru Module, part number 43W4419,

offers full non-blocking 4X DDR support to all 14 blade servers in a BladeCenter H chassis.

The InfiniBand Pass-thru Module is a double-height module, and up to two can be installed in

an IBM BladeCenter H, utilizing either switch bays 7 and 8, or switch bays 9 and 10 in the rear

of the chassis.

Figure 2-6 shows the rear of an IBM BladeCenter H with Pass-Thru Modules installed in bays

7 and 8 and 9 and 10.

Figure 2-6 Pass-thru Modules in High Speed Switch bays

Some important pass-thru module features:

򐂰 Provides a pass-through connection for 14 InfiniBand 4X DDR ports

򐂰 External ports: 14 copper InfiniBand 4X connectors

򐂰 Internal ports: 14 InfiniBand 4X ports connected to the mid-plane an on to the server slots

򐂰 Uplink ports that support hot-pluggable media converter for optical cable

򐂰 Two status LED's:

OK (Green) and Fault (Yellow)

Note: Although the Pass-Thru Module is a double-high module (to physically fit all the

external connectors), it is only connected to the upper module bay. In other words, the

module connects to bay 7 and bay 9. It does not connect to bay 8 and bay 10.

I/O-module bay 4

I/O-module bay 3

I/O-module bay 2

I/O-module bay 6

I/O-module bay 1

I/O-module bay 7

I/O-module bay 9

I/O-module bay 8

I/O-module bay 10

I/O-module bay 5

Pass thru module

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Cisco InfiniBand 4x User's Guide Page 38