Users Guide

By default, OpenManage 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 duration
for which OpenMange Power Center retains compressed and non-compressed data using the Data
compression and Purge data (older than) fields. Data that exceeds its duration 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 Purge 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.
• Purge data (older than) — Set the number of the days (1-365) to keep the compressed data and the
event logs. The default is 365 days.
• Schedule Purge — Set the time of day to start database purging (00:00:00 - 23:00:00). The default is
23:00:00. You can also purge the data immediately by clicking Purge Now. Power Center
immediately purges the database based on the settings in Purge data (older than). After the data is
purged an informative event, Database Maintenance Success, is displayed on the Events screen.
• Application Logs Settings — Enter the maximum size for the OpenManage Power Center application
log stored in the database, in the Maximum log size text box. The default is 100000 entries. After
reaching the specified log size, a new application log is created.
• Events Logs Settings — Enter the maximum size for the OpenManage Power Center event log stored
in the database, in the Maximum log size text box. The default is 100000 entries. After reaching the
specified log size, a new event log is created.
Setting or editing the database policy
1. In the left pane, click Settings → Database.
2. From the Data compression drop-down list, select the number of days (1-14) for which you want to
keep the non-compressed data (the default is 7 days).
3. From the Schedule Purge drop-down list, select the time at which the data must be purged. The
default time is 23:00.
4. In the Purge data (older than) text box, enter the number of days to remove the data automatically
from the database after the specified period. The default is 365 days.
5. In the Applications Logs Settings → Maximum log size text box, enter the maximum number of
entries for the application log. The default size is 100000 entries.
NOTE: To ignore the events from the protocol operation select Ignore Protocol Operation
Events (s) option.
6. In the Events Logs Settings → Maximum log size text box, enter the maximum number of entries for
the event log. The default size is 100000 entries.
7. Click Save to apply your changes, or click Reset to revert to the previously saved settings.
Configuring database backup
OMPC allows you to schedule a database backup of the power monitoring data. The backup data can be
used on a different OMPC server or can be used as a restore point in case of a disk failure.
You can also backup the database using CLI commands, for more information on the CLI commands
used for database backup, see the
backup_database section in Command Line Interface commands.
1. In the left pane, click Settings → Database.
2. Click Advanced Settings to configure the database backup.
3. Click Enable Database Backup. By default, this option is disabled.
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