IBM PureFlex System and IBM Flex System Products and Technology

58 IBM PureFlex System and IBM Flex System Products and Technology

4.1 Overview

Figure 4-1 shows the Enterprise Chassis as seen from the front. The front of the chassis has

14 horizontal bays with removable dividers that allow nodes and future elements to be

installed within the chassis. The nodes can be installed when the chassis is powered.

The chassis employs a die-cast mechanical bezel for rigidity. This chassis construction allows

for tight tolerances between nodes, shelves, and the chassis bezel. These tolerances ensure

accurate location and mating of connectors to the midplane.

Figure 4-1 IBM Flex System Enterprise Chassis

The major components of Enterprise Chassis are:

򐂰 Fourteen 1-bay compute node bays (can also support seven 2-bay or three 4-bay compute

nodes with the shelves removed).

򐂰 Six 2500-watt power modules that provide N+N or N+1 redundant power.

򐂰 Ten fan modules (eight 80 mm fan modules and two 40 mm fan modules).

򐂰 Four physical I/O modules.

򐂰 An I/O architectural design capable of providing:

– Up to eight lanes of I/O to an I/O adapter. Each lane capable of up to 16 Gbps.

– A maximum of 16 lanes of I/O to a half wide-node with two adapters.

– A wide variety of networking solutions that include Ethernet, Fibre Channel, FCoE, and

InfiniBand.

򐂰 Two IBM Flex System Manager (FSM) management appliances for redundancy. The FSM

provides multiple-chassis management support for up to four chassis.

򐂰 Two IBM Chassis Management Module (CMMs). The CMM provides single-chassis

management support.

59

Table 4-1 lists these components.

Table 4-1 8721-A1x Chassis configuration

Figure 4-2 shows the component parts of the chassis, with the shuttle removed. The shuttle

forms the rear of the chassis where the I/O Modules, power supplies, fan modules, and

Chassis Management Modules are installed. The Shuttle would be removed only to gain

access to the midplane or fan distribution cards, in the rare event of a service action.

Figure 4-2 Enterprise Chassis component parts

Within the chassis, a personality card holds vital product data (VPD) and other information

relevant to the particular chassis. This card can be replaced only under service action, and is

not normally accessible. The personality card is attached to the midplane as shown in

Figure 4-4 on page 61.

Part number Quantity Description

8721-A1x 1 IBM Flex System Enterprise Chassis

1 Chassis Management Module

2 2500W power supply unit

4 80 mm fan modules

2 40 mm fan modules

1 Console breakout cable

2 C19 to C20 2M power cables

1 Rack mount kit

Chassis Chassis

management

module

40mm fan

module

Fan

logic

module

CMM

filler

Power

supply

filler

I/O

module

Shuttle

Rear

LED

card

Power

supply

80mm fan

filler

80mm fan

module

Fan distribution

cards

Midplane