Node

When both the master and slave chassis are installed, the slave chassis does not support the firmware upgrade.

On the MM910 web user interface (WebUI), you can query the version information of the compute nodes, and upgrade the firmware online.

Table 1 describes the firmware upgrade functions on the MM910 WebUI.

**Table 1** Supported components and firmware for upgrades
Component	Firmware	Description
Compute node (Node)	CPLD Baseboard management controller (BMC) Basic input/output system (BIOS)	Multiple compute nodes of the same model can be upgraded at a time.

For details about upgrade steps, see the E9000 Server V100R001 Upgrade Guide.