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You can use the Filter dialog box to filter the Details pane so that only the contribution of certain entities is included. See “Filtering data” on page 19 Filtering data.
The Activity tab is divided into two areas, the Tree pane and the Details pane. A breakdown of the entities that are associated with the selected entity is displayed in the Tree pane. Information on the entity you selected is displayed in the Details pane.
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The duration value displayed next to each entry reflects the duration of each instance in the selected entity, according to the sort parameter you selected. The sort parameter is displayed next to each entity. The default entity for the top entity in the tree is In DB2 time. See “About About configuring your settings” on page 17settings.
Determining what information is displayed in the Tree
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When database files are stored on an EMC Storage unit and the Precise for Storage agent is installed, a tab named Storage is displayed. The tab presents a list of storage device used by the DB Partition entity. For each storage device it displays statistics regarding Cache Hit Ratio, Containers and Table Spaces, Requests amounts, Throughput, and I/O rate. See “Storage tab” on page 46 Storage tab.
When information on a selected entity is displayed in table and graph format in the Details pane, there is a direct correlation between the selected entry in the table and the information displayed in the graph below the table. Selecting a different row changes the information displayed in the graph displayed below the table.
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The Activity tab displays information on different entities. This section provides an overview of all entities, their meaning, and their views. See “The The Precise for DB2 Time Model” on page 12Model.
The following entities can be examined in the Activity tab:
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The following table describes the information displayed in the Storage tab.
Table 10 Storage tabAnchor StorageTabTable StorageTabTable
| Item | Description |
|---|---|
| Devices in Use | List of devices used by DB2 database partition. Storage Statistics information is shown for each device. Selecting one of devices will present detailed information about the selected device in other components below. |
| Device <unit name> <device number>’s Cache Hits | Historical overtime graph of read, write, and combined cache hit ratio (%) of the selected device. |
| Containers and Tablespaces on Device <unit name><device number> | List of Containers and Table spaces stored on the selected device. |
| Device <unit name> <device number>’s Requests | Historical overtime bars graph for read and write requests for the selected device. |
| Device <unit name> <device number>’s Throughput | Historical overtime graph for Throughput (Mb/Sec) of the selected device. |
| Device <unit name> <device number>’s I/O Rate | Historical overtime graph for I/O rate (Sec/Req) on the selected device. |
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