Chassis Management Module - Lenovo 8721 Product Manual

Table 5. Adapter to I/O bay correspondence
I/O adapter slot
in the server
Slot 1
Slot 2

Chassis Management Module

The Chassis Management Module (CMM) provides single-chassis management in the Enterprise Chassis.
The CMM is used to communicate with the integrated management module (IMM) controller in each
compute node to provide system monitoring, event recording and alerts, and to manage the chassis, its
devices, and the compute nodes.
The chassis has one CMM installed standard but supports two CMMs for redundancy. If one CMM fails,
the second CMM can detect its inactivity and activate itself to take control of the system without any
disruption. The CMM is central to the management of the chassis and is required in the Enterprise
Chassis.
There are two versions of the Chassis Management Module available:
Chassis Management Module 2 (00FJ669) -- contains a Trusted Platform Module (TPM) v2.0 chip
and has a Lenovo-signed firmware codebase. This module is recommended for new installation.
First generation Chassis Management Module (68Y7030) -- contains a Trusted Platform Module
(TPM) v1.1 chip and has an IBM-signed firmware codebase
Standard and TopSeller models of the chassis contain either a CMM (68Y7030) or a CMM2 (00FJ669) as
listed in Table 2. The selection of CMM determines which compute nodes and I/O modules are supported
in the chassis. See Tables 3 and 4 respectively for details. You can replace a CMM with a CMM2, however
mixing is not supported -- you cannot have a chassis with one CMM (68Y7030) and one CMM2 (00FJ669).
Flex System Enterprise Chassis
Port on the adapter*
Port 1
Port 2
Port 3 (for 4 & 8-port cards)
Port 4 (for 4 & 8-port cards)
Port 5 (for 8-port cards)
Port 6 (for 8-port cards)
Port 7 (for 8-port cards)
Port 8 (for 8-port cards)
Port 1
Port 2
Port 3 (for 4 & 8-port cards)
Port 4 (for 4 & 8-port cards)
Port 5 (for 8-port cards)
Port 6 (for 8-port cards)
Port 7 (for 8-port cards)
Port 8 (for 8-port cards)
Corresponding I/O module bay
in the chassis
Bay 1 Bay 2 Bay 3
Yes No No
No Yes No
Yes No No
No Yes No
Yes No No
No Yes No
Yes No No
No Yes No
No No Yes
No No No
No No Yes
No No No
No No Yes
No No No
No No Yes
No No No
Bay 4
No
No
No
No
No
No
No
No
No
Yes
No
Yes
No
Yes
No
Yes
11