content_image/989977.jpg
Figure 8-2 shows the layout of the components of the management enclosure. 

<img src='content_image/989977.jpg'>

The ME provides internal communications to all of the modules of the DS8900F system. It also provides external connectivity using two ethernet cables from each HMC for remote management, and provides keyboard/mouse and video connectivity from each HMC for local management. Cables are routed from the management consoles to the rear of the management enclosure through a cable management arm (CMA). 

## 8.1.2 Management Console hardware 

The MC itself consists of a small form factor (SFF) personal computer. The use of an SFF personal computer makes the MC efficient in many ways, including power consumption. The management console is also referred to as the Hardware Management Console (or HMC). It supports the DS8900F hardware and firmware installation and maintenance activities. 

Because of the small width, both primary and secondary MCs are mounted in the front of the ME next to each other. 

There is an 1U keyboard and display tray available. For racked models 996 and 994 it is required to order one.The Feature Code to order it is FC1765. For the flexibility class rack mounted model 993, it is optional. For this model there is no need to order 1U keyboard/display if the keyboard/display of the IBM Z or LinuxONE rack or the keyboard/display of the customer provided rack is available. 

