Fujitsu BX400 S1 manual Hot-plug components Connection blade stacking, Further information

Hot-plug components

8.2.2.1Connection blade stacking

Up to 4 Connection Blades GbE Switch/IBP 36/8+2 can be switched together to form a so-called stack. One of the connection blades takes on the role of the master. This connection blade is used to administer all modules of the stack. All modules of a stack act as one connection blade. In this way, connection blade stacking offers a large number of ports with minimum administrative effort.

The connections within a stack are established through the stacking ports of the connection blades. The internal stacking ports to the midplane of the system unit are each used to connect two connection blades that are installed in the same fabric, i.e. in two adjacent slots. Connection blades in different fabrics are connected through the external ports using CX4 cables.

Figure 27: CX4 cable

The stacking connections within a stack must form a circuit. Connection blade stacks can be formed within a system unit, across several system units of a rack or across several system units in different racks.

Further information

You determine which connection blade takes on the master role through the sequence and the intervals at which the connection blades are booted and connected with each other. For more detailed information and additional possible configurations, see the manuals "PRIMERGY BX900 Blade Server Systems – Ethernet Connection Blade Module IBP Version – User’s Guide", "PRIMERGY BX900 Blade Server Systems – Ethernet Connection Blade Module Switch Version – User’s Guide" and " スイッチブレード（10Gbps 18/8） 取扱説明書 " (for the Japanese market).

94 Operating Manual BX400 S1