Specifications

Power Management
ExtremeWare XOS 11.0 Concepts Guide 51
This command is also helpful in debugging synchronization problems that occur at run time.
This command displays, in percentages, the amount of copying completed by each process and the
traffic statistics between the process on both the master and the backup MSMs.
Viewing Node Status
ExtremeWare XOS allows you to view node statistical information. Each node installed in your system
is self-sufficient and runs the ExtremeWare XOS management applications. By reviewing this output,
you can see the general health of the system along with other node parameters.
To view node status, use the following command:
show node {detail}
Table 11 lists the node status collected by the switch.
Power Management
ExtremeWare XOS monitors and manages power consumption on the BlackDiamond 10808 switch by
periodically checking the power supply units (PSUs) and testing them for failures. To determine the
health of the PSU, ExtremeWare XOS checks the voltage, current, and temperature of the PSU. The
power management capability of ExtremeWare XOS:
• Monitors all installed PSUs
• Powers up or down I/O modules based on available power and required power resources
Table 11: Node states
Node State Description
BACKUP In the backup (secondary) state, this node fails over to the master if the master is unavailable and
becomes the master. Also in the backup state, this node receives checkpoints from the master.
DOWN In the down state, the node is not available to participate in leader election. The node enters this
state during any user action, other than a failure, that makes the node unavailable for
management. Examples of user actions are:
• Upgrading the software
• Rebooting the system using the reboot command
• Initiating an MSM failover using the run msm-failover command
• Synchronizing the MSMs software and configuration in non-volatile storage using the
synchronize command
FAIL In the fail state, the node has failed and needs to be restarted or repaired. The node reaches this
state if the system has a hardware or software failure.
INIT In the initial state, the node is being initialized. A node stays in this state when it is coming up and
remains in this state until it has been fully initialized. Being fully initialized means that all of the
hardware has been initialized correctly and there are no diagnostic faults.
MASTER In the master state, the node is responsible for all switch management functions.
STANDBY This node is in the standby state. If the master is not available, this node enters leader election
and transitions to master if it wins. The master elects the best standby to be the backup.