System Design Overview - IBM 2109 Model M12 User Manual

System design overview

The 2109 Model M12 is highly available, modular, and scalable. High availability
features include:
v Redundant CPs and CP hot-swappable replacements
v Dual redundant ac input and hot-swappable power supplies in the redundant
v Hot-swappable blowers in the redundant cooling system
v Hot-swappable switch modules
The modular multi-blade assembly chassis of the 2109 Model M12 consists of:
v Up to eight hot-swappable 16-port switch blade assemblies that deliver up to two
v Two slots for CP blade assemblies
v Modular hot-swappable field replaceable units (FRUs):
v Cables, blade assemblies, and power supplies that are serviced from the cable
v A cable management tray and cable pillars
v Three blowers that provide cooling for the switch. The switch continues to
v A worldwide name (WWN) light-emitting diode (LED) card on the noncable side
power subsystem
separate 64-port Fibre Channel switches in a single chassis. Each 64-port switch
uses four blade assemblies.
A single active CP can control both logical switches in the chassis.
– Switch blade assembly
– CP blade assembly
– SFP optical transceivers
– Blower assembly
– Power supply
side of the switch, and blowers that are serviced from the noncable side. See
Figure 5 on page 4, which illustrates the cable side and noncable side of the
switch.
operate indefinitely even if one blower fails.
that maintains chassis-specific information, such as WWNs, Internet Protocol (IP)
addresses and summary status information of each blade assembly and power
supply
3
Introduction