Compaq BL10e - HP ProLiant - 512 MB RAM Introduction Manual page 9

Dynamic Power Caps should always be done in conjunction with your facilities department.
First, download and apply the following updates to your HP ProLiant server (see
•
Appendix for list of supported servers):
Table 4. Component Requirement for Rack-Mount Servers
Required Component
ROM BIOS
iLO
IPM component of
Insight Control
Environment
Next, download the latest version of HP Power Calculator from the following URL:
•
http://h30099.www3.hp.com/configurator/calc/Power%20Calculator%20Catalog.xls
Run the HP Power Calculator with your specific configuration using the default settings.
•
When using the HP Power Calculator default settings for our DL380 G5 TCO benchmark
configuration (see Appendix), our configuration yields a power estimate of 450 Watts.
The HP Power Calculator output becomes the initial Dynamic Power Cap for your ProLiant
•
rack-mount server. Based on the HP Power Calculator output for our ProLiant DL380 G5
configuration, we would set the initial Dynamic Power Cap at 450 Watts.
• Using Insight Control Environment, observe peak power usage for a period of time that
aligns to the server's application duty cycle. Depending on the application in question,
this duty cycle could be as short as a few days or as long as a calendar quarter. HP
recommends collecting and observing data for at least one week to ensure that the peak
power consumption value observed represents the true peak power usage for the server in
question.
Adjust the Dynamic Power Cap for your ProLiant rack-mount server in accordance with
•
actual peak power usage. Based on our TCO benchmarking, we would adjust our
Dynamic Power Cap downward to 368 Watts.
Finally, continue to observe power usage for each rack-mount server using HP Insight
•
Control Environment. If the Dynamic Power Cap is invoked too frequently, it may have an
adverse impact on server performance. In these situations, you may want to raise the cap
to remove any negative performance impact. In cases where you are raising the cap,
proceed with caution as the sum of the single server Dynamic Power Caps may not
exceed the capacity of the branch circuit and PDUs to which they are attached.
The following table summarizes the best practice for establishing Dynamic Power Caps for rack-
mount servers.
Table 5. Steps to Best Practices with Rack-Mount Servers
Step
Step 1
Step 2
Step 3
Version Required
11/1/2008 or later
1.70 or later
2.0 or later
Action
Update server BIOS, iLO firmware, and Insight Control
Environment software.
Use HP Power Calculator to establish the initial Dynamic Power
Cap for your rack-mount servers.
Observe power usage using Insight Control Environment for a
complete application duty cycle and re-adjust Dynamic Power
Cap based on actual peak power usage.
Comment
BIOS update applied to each server
iLO update applied to each server
IPM update applied to Insight Control
Environment central management server.
.
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