Power Management And Reporting Of Individual Servers - Compaq BL10e - HP ProLiant - 512 MB RAM Introduction Manual

Figure 3. Power consumption of ProLiant
625
620
615
610
605
600
595
590
Watts AC
585
Therefore, a 1000-server datacenter would save approximately $25,000 per year
indirect power costs by using 208V instead of 115V power.

Power management and reporting of individual servers

Power management and reporting of all servers are essential to managing power and cooling in a
data center environment. HP provides the HP Power Regulator for ProLiant, HP Integrated Lights Out
processors (iLO and iLO 2), and HP SIM to help manage power at a server level.
Power Regulator is an OS-independent power management feature of complaint HP ProLiant servers.
Power Regulator technology enables dynamic or static changes in CPU performance and power
states. Power Regulator effectively executes automated policy-based power management at the
individual server level. Power Regulator can be enabled on single systems from the system ROM, iLO
browser, or command line. A more robust management capability is available by using HP SIM. HP
SIM allows administrators to access the iLO management processors of multiple servers in a data
center environment.
The iLO and iLO 2 management processors monitor the CPU operation of individual servers at high
and low performance levels and report the percentage of time at each level over 24 hours. This
provides an indication of CPU power efficiency. Results are accessible from the iLO browser,
command line, and scripted reports (see Figure 4 for an example when using a browser). When IT
administrators use SIM, this historical information is available for multiple servers along with more
extensive reporting options accessed through HP Insight Power Manager (IPM). IPM allows
administrators to view server power usage over time as well as over the entire data center, as
described in more detail in the section titled
3 Department of Energy: 8¢ per kWh US national average
Information about Power Regulator compliant ProLiant servers can be found at;
4
http://h18013.www1.hp.com/products/servers/management/ilo/sup_servers.html?jumpid=reg_R1002_USEN
server at different AC supply levels
DL380 G4
622
601
100 115 200
Volts AC
"Efficient practices for facility-level power and
600
599 599
208 220 230
599
240
3 in direct and
cooling".
4
8