Performance Tuning for Content Manager

54 Performance Tuning for Content Manager

information) to four (maximum information), with three being the default.

Increasing the amount of diagnostic output can result in performance degradation

and insufficient storage conditions in your database instance file system.

The file will continue to grow forever and consume space, so it is necessary to

maintain the file. Instead of manually editing the file to crop it down or simply

deleting the file, we recommend that you periodically move the file to another disk.

(DB2 will automatically create a new db2diag.log file.) Each moved file would

overlay the previously moved file, allowing for one version of historical data.

2.2 WebSphere Application Server overview

IBM WebSphere Application Server Version 5.1 is a comprehensive Java 2

Platform, Enterprise Edition 1.4, and Web services technology-based application

server. It integrates enterprise data and transactions, and provides the core

software to deploy, integrate, and manage Web applications.

Through a rich application deployment environment, you can build, manage and

deploy dynamic Web applications, handle high-transaction volumes and extend

back-end business data and applications to the Web. WebSphere Application

Server Network Deployment offers advanced Web services that can operate

across disparate application frameworks and business-to-business (B2B)

applications, and provides virtual any-to-any connectivity with transaction

management and application adaptability.

With multiple configuration options, WebSphere Application Server supports a

wide range of scenarios, from simple administration of a single server to a

clustered, highly available, high-volume environment with edge-of-network

services. These specialized configuration options give you the flexibility to

Attention: DB2 is a key underlying software of Content Manager and it plays

a critical role in the performance of a Content Manager system. In this section,

we merely touched the very basics of the DB2 components and architecture.

In 11.4, “Monitoring and analysis tools for DB2” on page 295, we introduce

some of the performance tuning monitoring tools for DB2. Chapter 6, “Best

practices for Content Manager system performance” on page 143, and

especially Chapter 8, “Tuning DB2 for Content Manager” on page 171 discuss

DB2-specific tuning for a Content Manager system.

To better understand DB2 and DB2 performance tuning, we recommend

reading the publications we mentioned at the beginning of this DB2 Universal

Database overview section.