Owner's Manual

• Temperature Units – Select the temperature unit used to display temperature details. Power Center

automatically converts the temperature values according to the selected unit.

• Currency – Select the currency used to display energy consumption cost. After you change the unit, Power

Center does not convert the cost value according to the exchange rate—Power Center only changes the display

of the currency symbol.

These are effective immediately.

Protocol Type Device Timeout Settings

These settings are used to configure the timeout between devices and the Power Center server.

• IPMI – Communication timeout between Power Center and an IPMI-enabled device (1-20 seconds). The default

is 3 seconds.

• SNMP – Communication timeout between Power Center and a SNMP-enabled device (1-20 seconds). The

default is 3 seconds.

• WS-MAN – Communication timeout between Power Center and a WS-MAN device (5-180 seconds). The default

is 60 seconds.

The settings are effective from the next time Power Center tries to communicate with the affected device.

Energy Consumption Settings

These settings are used to calculate the energy consumption cost.

• Flat Rate — The rate of the power per kilowatt-hour (kWh); it uses the currency you set in Default Units. The

default is 0.

• Cooling Multiplier — The multiplier enables estimating the energy needed to cool the device/group. The default

is 1.5.

When are the settings effective?

• Flat Rate — From beginning of the next hour. For example, if you changed the setting on 8:15, the new setting

will be effective from 9:00.

• Cooling Multiplier — Immediately.

Database Policy Settings

Database policy settings are used to configure the database maintenance policy.

Power Center stores monitoring data for your data center in a database file, using compressed power/temperature data

to optimize for higher query performance and smallest database size. It stores both power/temperature compressed

data and non-compressed data in the database. Data compression helps improve data query efficiency by aggregating

and saving monitoring data using a bigger granularity (hourly or daily), but not the original granularity decided by the

Sampling Interval.

By default, Power Center keeps compressed power/temperature data and event data up to 365 days and non-

compressed power/temperature data up to 14 days. You can configure the length of time that Power Center will keep

compressed and non-compressed data using the Purge Data Older Than and Data Compression fields. Data that

exceeds its length of time or is older than the purge date is deleted. This improves the efficiency of the data query. You

can automatically purge data by using the Schedule Database Purging Daily at field, or you can trigger it manually to

start purging data immediately (see “Purge Database Now,” below).

You can set the following for database maintenance:

• Data Compression — Set the number of the days (1-14) to keep the non-compressed data. The default is 7 days.