Owners Manual

CMC Module

Figure 12. CMC Module Features

Ethernet connector Gb1 2. Ethernet connector STK ("stack") - used for daisy-chaining

CMCs in separate enclosures

3. Link indicator 4. Activity indicator

5. DB-9 serial connector for local configuration 6. Optional secondary CMC (CMC 2)

7. Optional iKVM module 8. Primary CMC (CMC 1)

9. Blue status/identification indicator 10. Power indicator

CMC Module Features

The CMC provides the following multiple systems management functions for your modular server:

• Enclosure-level real-time automatic power and thermal management.

• Monitors system power requirements and supports the optional Dynamic Power Supply Engagement (DPSE) mode. The DPSE

mode improves power efficiency by allowing the CMC to dynamically place power supplies in standby mode, depending on the load

and redundancy requirements.

• Reports real-time power consumption, which includes logging high and low points with a time stamp.

• Supports setting an optional enclosure Maximum Power Limit, which either alerts or takes actions, such as throttling server

modules and/or preventing the power up of new blades to keep the enclosure under the defined maximum power limit.

• Monitors and automatically controls cooling fans based on actual ambient and internal temperature measurements.

• Provides comprehensive enclosure inventory and status/error reporting.

• CMC fail-safe mode. For more information, see CMC Fail-Safe Mode.

• The CMC provides a mechanism for centralized configuration of the following:

• The enclosure’s network and security settings

• Power redundancy and power ceiling settings

NOTE:

Modifying the modular enclosure redundancy policy is recommended to be performed while the modular

enclosure is powered off.

• I/O switches and iDRAC network settings

• First boot device on the server blades

• Checks I/O fabric consistency between the I/O modules and blades and disables components if necessary to protect the system

hardware

• User access security

About your system