Table of ContentsLibraryView in Frames

The Baseboard Management Controller

The Baseboard Management Controller (BMC) is a remote management device that is built into the motherboard of the FAS2000 series storage systems. It provides remote platform management capabilities, including remote access, monitoring, troubleshooting, logging, and alerting features.

The BMC firmware supports Intelligent Platform Management Interface (IPMI) version 2.0, which by default supports Serial Over LAN (SOL) for console redirection.

The BMC stays operational regardless of the operating state of the storage system. Both the BMC and its dedicated Ethernet NIC use a standby voltage for high availability. The BMC is available as long as the storage system has input power to at least one of the storage system’s power supplies.

The BMC monitors environmental sensors, including sensors for the temperature of the system's non-volatile memory (NVMEM) battery, motherboard, and CPU, and for the system's voltage level. When the BMC detects that an environmental sensor has reached a critically low or critically high state, it generates AutoSupport messages and shuts down the storage system. The data generated by the sensors can be used as a reference point to help you troubleshoot storage system issues. For example, it can help a remote system administrator determine if a system was shut down due to an extreme temperature change in the system.

The BMC also monitors non-environmental sensors for the status of the BIOS, power, CPU, and serial-attached SCSI (SAS) disks. These sensors are recorded by the BMC to assist support personnel.

The following table lists the names and the description of the sensors that BMC monitors:

Sensor Name Description
1.1V Board 1.1V sensor
1.2V Board 1.2V sensor
1.5V Board 1.5V sensor
1.8V Board 1.8V sensor
2.5V Board 2.5V sensor
3.3V Board 3.3V sensor
CPU 1.2V CPU 1.2V sensor
12.0V Power 12V sensor
BIOS Status BIOS status normal
Board Temp Top Temperature at the top side of the board
Board Temp Bot Temperature at the bottom side of the board
CPU Status CPU status OK
CPU Temp CPU temperature
Power Status Power on/off
Batt Amp Battery amp
Batt Capacity Battery capacity
Charger Amp Battery charge amp
Charger Cycles Battery charge cycle
Charger Volt Battery charge voltage
Batt Temp Battery temperature
Batt Run Time Battery run time
Batt 8.0V Battery 8.0 voltage
NVMEM 1.8V NVMEM 1.8 voltage
NVMEM 8.0V NVMEM 8.0 voltage
SAS Status SAS status OK
The following diagram illustrates how you can access the storage system and the BMC.
Figure 1. Accessing the storage system and the BMC
This graphic is described by the surrounding text.

With the BMC, you can access the storage system in these ways:
  • Through an Ethernet connection using a secure shell client application

    You use the BMC CLI to monitor and troubleshoot the storage system.

  • Through the serial console

    You use the Data ONTAP CLI to administer the storage system and the BMC.

If you have a data center configuration where management traffic and data traffic are on separate networks, you can configure the BMC on the management network.