In OpManager, performance data from monitors are archived periodically and stored in the database. The retention period of this data is controlled by the configuration provided in the Database Maintenance Settings page.
To display this data in various graphs in the Device & Interface Snapshot pages (navigate to the Inventory → Devices/Interfaces and click on the device/interface name), and to control the granularity of data used in these graphs, users have to configure suitable values in the Graph Display Settings page.
The "Detailed", "Hourly" and "Daily " fields can be used to configure the limits while using each level of data. These values can and must be configured only in increasing order, in the same sequence as mentioned above. The values configured here will work in combination with the data retention periods configured in the Database Maintenance page to display the graph data for the users.
The minimum, maximum and default values for different fields in this page are as below:
| Statistic type | Minimum no. of days | Maximum no. of days | Default value in Graph Display settings |
|---|---|---|---|
| Detailed | 2 | 15 | 7 |
| Hourly | "Detailed" value + 1 | 60 | 15 |
| Daily | "Hourly" value + 1 | 365 | 180 |
Example: If the data retention period for Detailed Statistics is set to 10 days in the Database Maintenance page, and if the equivalent value in Graph Display Statistics is set to 7 days, then the user can view graphs based on Detailed Statistics for any 7-day window in the last 10 days.
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