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Figure 10. HP BladeSystem c3000 interconnect bay numbering

For interconnect bay mapping purposes, it does not matter in which device bay a server blade is

installed. The mezzanine connectors always connect to the same interconnect bays. Because the

connections between the device bays and the interconnect bays are hard-wired through the NonStop

signal midplane, the server mezzanine cards must be matched to the appropriate type of interconnect

module. For example, a Fibre Channel mezzanine card must be placed in the mezzanine connector

that connects to an interconnect bay holding a Fibre Channel switch.

Embedded NICs and adapters installed in Mezzanine 1 are supported by single-wide interconnects in

interconnect bays 1 and 2 respectively. Mezzanine 2 and 3 can be supported by either single-wide

or double-wide interconnects such as InfiniBand or 10 Gb Ethernet devices in interconnect bays 3

and 4.

An internal connection on the midplane between interconnect bays 1 and 2 and an additional

connection between interconnect bays 3 and 4 provide an internal link for use as a crosslink port

between interconnect bays 1 and 2 or interconnect bays 3 and 4. NIC teaming can be configured

between embedded NICs and Mezzanine 1 NICs using the internal crosslinks between the switches

through this internal connection.

Several port types are referenced in Figures 11 and 12:

• Examples of 1x ports are 1-Gb Ethernet (1-GbE) pass-thru modules and Fibre Channel interconnect

modules.

• An example of a 2x port is a SAS interconnect module.

• Examples of 4x ports are 10-GbE pass-thru modules and InfiniBand interconnect modules.

A full-height server blade plugs into two device bay connectors and has 32 lanes available to the 4

interconnect bays (16 lanes x 2 in Figure 12). Interconnect bay 1 is reserved for Ethernet

1 2 ... 14 15 16 17 18 19 20 21 22 23 24 ... 37 38

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