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Spotlight on DB2 6.10 - User Guide

Spotlight on IBM DB2 LUW (Linux, Unix, and Windows)
New in This Release Getting started with Spotlight on IBM DB2 LUW Desktop features specific to Spotlight on IBM DB2 LUW Spotlight on IBM DB2 LUW drilldowns
About Spotlight on IBM DB2 LUW drilldowns Buffer Pool Analysis drilldown Client Application Analysis drilldown Database Analysis drilldown Database Manager Summary drilldown Diagnostic Log drilldown FCM Analysis drilldown Tablespace Analysis drilldown Top SQL drilldown Operating System drilldown Workload Management Analysis drilldown
Spotlight on IBM DB2 LUW alarms Spotlight on IBM DB2 LUW Options Tuning SQL statements in Spotlight on IBM DB2 LUW
Spotlight Basics
Spotlight Connections Monitor Spotlight Connections Alarms Charts, Grids And Home Page Components View | Options Troubleshooting
Spotlight History Spotlight on Windows
Connect to Windows Systems Background Information Home Page Alarms Drilldowns View | Options Troubleshooting
Spotlight on Unix About us Third-party contributions Copyright

Direct Write Rate

The W/s dataflow depicts the rate of direct writes to the database or partition. Direct writes are database requests that bypass buffer pools to write LONG VARCHAR or large object (LOB) data directly to the database or partition or to perform database restores and loads.

Required monitor switch

Buffer Pool

Displayed statistic

At each refresh, Spotlight captures the following statistic and displays it just above the read rate dataflow:

W/s (direct write rate)—The number of direct writes per second at the database or partition level.


The line graph that overlays the dataflow plots the direct write rate captured over the series of refreshes that have occurred during the Spotlight session.

Associated drilldown

Click the W/s dataflow to open the Databases drilldown. This drilldown provides details about database or partition that you are monitoring. The I/O tab on the drilldown is in immediate focus to help you pinpoint I/O flow problems in the database or partition.


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