The PingDataMetrics Server stores all historical metric samples in the PostgreSQL DBMS, along with several other data tables that are used for bookkeeping and normalization of the sample data.
Even a small PingDataMetrics Server installation, which monitors three to four servers, will use sample tables that occupy 95% of the total DBMS space. While a functional backup must capture a consistent view of several tables, the size of the sample tables dictates the desired approach to a regular backup strategy.
The historical samples enable:
- Diagnosing past performance problems
- Capacity planning and historical reporting
- Access to data needed for a revenue stream, such as data used for billing and charge back
Note:
If it's not possible to determine what data will be important in the future, backing up all DBMS data is the safest approach.