BMC (Baseboard Management Controller)
The Baseboard Management Controller (BMC) is a specialized microcontroller embedded on a server’s motherboard that enables remote management and monitoring of the server's hardware, even when the server is powered off or the operating system is not functioning. The BMC is part of the Intelligent Platform Management Interface (IPMI) standard, which provides a framework for managing servers.
Key Functions of a BMC
The BMC performs several critical functions in server management:
Remote System Monitoring: It allows us to monitor server health, including parameters like temperature, fan speeds, voltage, and other critical system performance indicators.
Remote Power Management: We can remotely control the power state of the server, performing actions such as power on, off, or reboot.
System Recovery and Maintenance: In cases of system crashes or failures, the BMC can be used to access the system remotely for recovery and maintenance tasks.
Logging: BMCs keep logs of system events and alerts, which are crucial for diagnosing and resolving hardware issues.
Firmware Updates and Configuration: It enables remote updating and configuration of system firmware, improving the efficiency of managing large numbers of servers.