Show Node - Extreme Networks ExtremeWare XOS Command Reference Manual

show node

show node {detail}
Description
Displays the status of the nodes in the system as well as the general health of the system.
Syntax Description
detail
Default
N/A.
Usage Guidelines
Use this command to display the current status of the nodes and the health of the system. The
information displayed shows the node configurations (such as node priority) and the system and
hardware health computations. You can use this information to determine which node will be elected
master in case of a failover.
Table 7 lists the node statistic information collected by the switch.
Table 7: Node states
Node State
BACKUP
DOWN
FAIL
INIT
MASTER
STANDBY
ExtremeWare XOS 11.0 Command Reference Guide
Displays the information on a per-node basis rather than in a tabular format.
Description
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.
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
• Initiating an MSM failover using the
• Synchronizing the MSMs software and configuration in non-volatile storage using the
command
synchronize
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.
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.
In the master state, the node is responsible for all switch management functions.
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.
command
reboot
command
run msm-failover
show node
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