HP Insight Control - Manual (Page 22)

Task: Ensuring sufficient availability of power and cooling for your data
center
After configuring systems and devices in the data center, use the Power/Thermal Analysis view
page to view diagnostic information on the power and cooling infrastructure.
In the Power/Thermal Analysis view page:
•
Power Status Alerts are highlighted with severity icons to highlight the severity of the alert.
Alerts for contained devices are aggregated to the top-level object displayed.
•
Potential overloads are highlighted on the Physical Location tab for exceeded thermal limits
and on the Power Delivery tab for power delivery devices.
For thermal overloads, you may consider the need to move one or more systems to a rack with
more cooling capacity or to set an upper limit on power consumption through use of power capping.
For more information, see
Task: Protecting your power and cooling infrastructure .
Potential overloads on power delivery devices must be evaluated with care because they may
represent the potential of a tripped circuit breaker and unexpected system down time under the
specific conditions. As with thermal overloads, you may need to reconfigure systems to receive
power from other power delivery devices to ensure sufficient capacity for all potential demands.
Another option is to protect the power delivery infrastructure by limiting power consumption using
power capping. For more information, see
Task: Protecting your power and cooling infrastructure .
Task: Protecting your power and cooling infrastructure
In your data center, after configuring systems and devices, you must finalize the power and cooling
infrastructure. Planning this infrastructure protects your systems and ensures that there is no data
loss because of power problems. By planning this infrastructure, you are notified when systems
are reaching their thresholds of power or cooling limits.
After you have identified a portion of your power and cooling infrastructure that has a potential
for an overload, you did not experience any problem. But, power management analyses indicate
that under a worst-case scenario, your rack may exceed thermal output limits. Or, even still worse
a circuit breaker on a power delivery device may have the potential to trip resulting in loss of
power if all equipment drew maximum power at the same time. The traditional solution to this
problem would either be to relocate systems to areas of the data center with excess power or
cooling capacity to avoid the potential problem. However, but this solution is disruptive and requires
significant planning. If your systems support HP Dynamic Power Capping, you can reduce the
maximum power consumption and eliminate the potential overload condition by specifying a power
cap value.
To protect your power/cooling infrastructure:
1.
Make a note of the maximum available power for the set of systems (the rack or the overloaded
power delivery device). This value is reported in the Potential Overload Analysis
message.
2. Select each system involved individually, or press and hold the Shift key to select and add
multiple systems to the selection, and then click Display Power/Thermal data from the Quick
Launch menu.
3. In the Verify Target Systems page, the unsupported systems are removed from the selection.
Make a note of the unsupported systems to add their maximum power consumption and
subtract the value from the total power being allocated, as mentioned in step 1. Click Next
and confirm that some targets will be removed from the selection.
22 Managing power and cooling facilities in your data center