Determining idle/max values for blade servers, P-class hp blades and hp blade system sizer – HP Matrix Operating Environment Software User Manual
Page 126
Download the power calculators in spreadsheet form for older HP Proliant DL/ML/PL
servers:
.
a.
For newer Proliant systems...:
Use the HP Power Advisor described at this web site:
b.
Download the power calculators in spreadsheet form for HP Integrity servers (rx* and
Superdome) by visiting “HP Thermal Logic for Integrity servers” web page:
.
2.
Configure the power calculator to match your desired hardware configuration.
3.
Determine idle/max values for manual calibration by locating the Total System Input Power
Requirement
. This value is always in Watts unless otherwise indicated.
a.
If a system utilization slider bar is present, the user can determine both the max and idle
power requirements by adjusting the slider bar.
1)
The idle power value is determined by adjusting the system utilization slider bar
to 0% usage, and reading the value of Total System Input Power Requirement.
2)
The max power value is determined by adjusting the system utilization slider bar
to 100% usage, and reading the value of Total System Input Power Requirement.
b.
If no slider bar is present, then only the maximum power value can be determined.
1)
Use the indicated Total System Input Power Requirement as the Max power
requirement
in the power calibration screen.
2)
Leave the Idle power requirement blank in the power calibration screen. Capacity
Advisor will automatically use 80% of the provided Max power requirement as
the assumed idle value.
Determining idle/max values for Blade servers
An HP Blade System has a distributed power architecture, which makes it difficult to determine
idle/max values for an individual blade. A single blade’s power usage depends on rack
configuration and the power consumption of other blades within an enclosure.
For HP Blades with iLO2, it is recommended not to use Manual Calibration. Auto Calibration
using actual observed power consumption of an individual blade (from HP Insight Control
power management) is more accurate than manual calibration in this situation.
However, manual idle/max values can still be determined by using the HP Blade System Sizer
that can be downloaded from
P-class HP Blades and HP Blade system sizer:
1.
Go to the HP Blade System Sizer, and start with an empty configuration.
2.
Specify the Rack and Power configuration.
3.
Select enclosure1, and specify the appropriate enclosure type. Select CTO if you are
configuring for Integrity blades.
4.
Calculate idle value for a single blade:
a.
Configure a single bay with a blade matching your desired configuration.
b.
Specify utilization to 1%.
c.
Select “Update Calculation” and record the Total System Input Power as idleSingle.
5.
Calculate the max value for single blade:
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Calculation assistance