Users Guide

Viewing Power Consumption Status Using CMC Web
Interface
In the left pane, click Chassis Overview > Power > Power Monitoring. The Power Monitoring page displays the power health, system
power status, real-time power statistics, and real-time energy statistics. For more information, see the Online Help.
NOTE: You can also view the power redundancy status under Power Supplies.
Viewing Power Consumption Status Using RACADM
To view power consumption status using RACADM:
Open a serial/Telnet/SSH text console to CMC, log in, and type:
racadm getpminfo
AC Power Recovery
If the AC power supply of a system is disrupted, the chassis is restored to the previous power state before the AC power loss. The
restoration to the previous power state is the default behavior. The following factors could cause the disruption:
• power outage
• power cables pulled from the power supply units (PSUs)
• power distribution unit (PDU) outage
If the Budget/Redundancy Configuration > Disable AC Power Recovery option is selected, the chassis remains powered off after
the AC recovery.
In case, the blade servers are not configured to automatic power-up, you may have to power them on manually.
Viewing Power Budget Status Using CMC Web
Interface
To view power budget status using CMC Web interface, in the left pane go to Chassis Overview and click Power > Budget Status.
The Power Budget Status page displays the system power policy configuration, power budget details, budget allocated for server
modules, and chassis power supply details. For more information, see the Online Help.
Viewing Power Budget Status Using RACADM
Open a serial/Telnet/SSH text console to CMC, log in, and type:
racadm getpbinfo
For more information about getpbinfo, including output details, see the getpbinfo command section in the Chassis Management
Controller for PowerEdge VRTX RACADM Command Line Reference Guide.
Redundancy Status and Overall Power Health
The redundancy status is a factor in determining the overall power health. When the power redundancy policy is set, for example, to Grid
Redundancy and the redundancy status indicates that the system is operating with redundancy, the overall power health is typically OK. If
the PSU installed on a chassis fails owing to some reason, the overall power health status of the chassis is displayed as Non-Critical.
However, if the conditions for operating with Grid redundancy cannot be met, the redundancy status is No, and the overall power health is
Critical. This is because the system is not able to operate in accordance with the configured redundancy policy.
The active CMC polls the health status from the standby CMC to determine if the chassis is redundant. When you disconnect the
network cable, a chassis failover is triggered after 30 seconds. And, the standby CMC is active. The network disruption causes the
originally active CMC to boot after about three minutes and becomes a standby CMC. The health monitoring task on the standby CMC
resumes after five minutes. Health changes, if any, on the standby are processed only after the standby is stable. The active CMC must
Managing and Monitoring Power
159