Users Guide
272 Power Monitoring and Management
•
Start Time
displays the date and time recorded when the system energy
consumption value was last cleared and the new measurement cycle began.
For
Cumulative
, you can reset this value with the
Reset Cumulative
button, but it will persist through a system reset or failover operation.
For
Max Peak Amps
and
Max Peak Watts
, you can reset this value with the
Reset Max Peaks
button, but it will also persist through a system reset or
failover operation.
•
Finish Time
for
Cumulative
displays the current date and time when the
system energy consumption was calculated for display. For
Max Peak Amps
and
Max Peak Watts
, the
Finish Time
fields display the time when these
peaks occurred.
NOTE: Power Tracking Statistics are maintained across system resets and so
reflect all activity in the interval between the stated Start and Finish
times.The Reset Max Peaks button will reset the respective field back to zero. In the
next table, Power Consumption data is not maintained across system resets and so
will reset back to zero on those occasions. The power values displayed are
cumulative averages over the respective time interval (previous minute, hour, day
and week). Since the Start to Finish time intervals here may differ from those of the
Power Tracking Statistics ones, peak power values (Max Peak Watts versus Max
Power Consumption) may differ.
Power Consumption
• Displays the average, maximum, and minimum power consumption in the
system for the last minute, last hour, last day, and last week.
• Average Power Consumption: Average over previous minute, previous
hour, previous day and previous week.
• Max and Min Power Consumption: The maximum and minimum power
consumptions observed within the given time interval.
• Max and Min Time: The time when the maximum and minimum power
consumptions occurred.
Headroom
System Instantaneous Headroom displays the difference between the power
available in the power supply units and the system's current power
consumption.
System Peak Headroom displays the difference between the power available
in the power supply units and the system's peak power consumption.