4.2.5 Store database storage methods
The Store database that stores the operation monitoring data collected by the monitoring agent is available in two versions, Store 1.0 and Store 2.0. Store 2.0 can be used with version 08-11 or later of PFM - Manager or PFM - Base combined with version 08-00 or later of PFM - Agent.
PFM - RM can only use Store 2.0.
The two versions of the Store database differ in how they store operation monitoring data.
- Organization of this subsection
(1) Storage method used with Store 1.0
This example shows the storage of PI records.
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With Store 1.0, all of the records of each record type (PI/PD/PL) are stored as operation monitoring data in a single database. The maximum capacity of the database is 2 GB.
(2) Storage method used with Store 2.0
This example shows the storage of PI records.
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With Store 2.0, operation monitoring data is stored in the Store database in multiple files, each covering a specific time period (division period) determined by the summarization category and record type of the data. Each database storing data of a specific division period is called a unit database.
Summarization category |
Division period |
---|---|
Per-minute, hourly, and PD/PL records |
Daily |
Daily and weekly records |
Weekly |
Monthly records |
Monthly |
Yearly records |
Yearly |
With Store 2.0, the 2 GB limit applies to each database storing data of a specific division period, not to all databases. For this reason, a greater amount of operation monitoring data can be stored than when Store 1.0 is used. Records collected on a per-minute or hourly basis are kept for a maximum of one year. Records collected on a daily, weekly, or monthly basis are kept for a maximum of 10 years. Records collected on a yearly basis are kept indefinitely. This allows for long-term analysis of the system's operating status.