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Oracle Enterprise Manager

Slides from Dominic Gélinas

CIS 764 2004

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Overview

What is Oracle Enterprise Manager? Main Features Optimization Features Strengths Weaknesses Conclusion References

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Monitoring Tool Monitors CPU, Memory, Disk usage Sends e-mail notifications & alerts for critical conditions

Analysis Tool Analyzes configurations, SQL statements, and applications Gives suggestions for improving performance

Administration Tool Job scheduling Account management

Oracle Enterprise Manager

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Oracle Enterprise Manager

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What isOracle Enterprise Manager?

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Main Features

Database Management Analyze problem SQL statements Monitor DB health

Application Server Management Monitor AS components & status Monitor real-time performance

Host Management Analyze process CPU and memory usage

Grid Management

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Optimization Features

Gather Statistics Usage statistics for the SQL optimizer

Reorganize Objects Reorganizes indices and tables to improve

performance SQL Tuning

Identifies problematic SQL statements and provides suggestions for fixing them.

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Gather Statistics

Step 1 – Introduction Step 2 – Collect, Estimate, or Delete

Statistics Step 3 – Object Selection Step 4 – Schedule Job Step 5 – Review

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Gather Statistics – Step 1

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Gather Statistics – Step 2

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Gather Statistics – Step 3

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Gather Statistics – Step 4

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Gather Statistics – Step 5

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Reorganize Objects

Step 1 – Select Object Type Step 2 – Select Objects Step 3 – Reorganization Options Step 4 – Impact Report Step 5 – Schedule Job Step 6 – Review

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Reorganize Objects – Step 1

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Reorganize Objects – Step 2

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Reorganize Objects – Step 3

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Reorganize Objects – Step 4

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Reorganize Objects – Step 5

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SQL Tuning

Step 1 – Top SQL, Select SQL to Analyze Step 2 – Schedule Job Step 3 – View Results Step 4 – Recommendations

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SQL Tuning – Step 1

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SQL Tuning – Step 2

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SQL Tuning – Step 3

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SQL Tuning – Step 4

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Strengths

Nice Wizards Graphs Recommendations & Advice Excellent Online Help Web Based Interface – Accessible Anywhere Comprehensive Set of Tools Grid Management

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Weaknesses

Runs from the Oracle Application Server AS is CPU & Memory Hog

AMD Athlon XP 2200+, 512 MB Java processes seem to be the cause

Poor User Interface Organization Difficult to find specific tools Difficult to view things like schemas, tables,

objects, etc…

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Conclusion

Good Tool for Experienced Users Lots of features Everything under one roof Steep learning curve

Oracle Enterprise Manager is not a tool for application developers, it is a tool for DBAs Focus is on tuning & maintaining database Can be helpful to find & fix performance issues in

deployed applications Practically Requires Dedicated Server

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References

http://www.oracle.com/technology/documentation/oem.html Oracle Enterprise Manager Metric Reference Manual (696 pages) Oracle Enterprise Manager Concepts (108 pages) Oracle Enterprise Manager Advanced Configuration (206 pages) Oracle Enterprise Manager Grid Control Installation and Basic

Configuration (66 pages) Oracle Enterprise Manager Managing Oracle Collaboration Suite

(78 pages) Oracle Enterprise Manager Online Help Pat Keegan, DBA at General Dynamics C4 Systems PowerPoint, Paper, and Screenshots posted at

http://www.cis.ksu.edu/~dominic/764/presentation