Top Down Performance Management with OEM Grid Control Or How I learned to stop worrying and love OEM Grid Control John Darrah, DBAK

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1 Delivering Oracle Success Top Down Performance Management with OEM Grid Control Or How I learned to stop worrying and love OEM Grid Control John Darrah, DBAK RMOUG QEW November 19, 2010

2 About DBAK Oracle solution provider Co-founded in 2005 Based in Englewood, CO 2008 Emerging Business of the Year South Metro Denver Chamber of Commerce More than 130 implementations, upgrades, conversions, and support projects for 80+ clients Average 15 years of Oracle expertise Oracle Gold Partner DBAK

3 The DBA Challenge Manage complex environments N-Tier environments with several entry points to the database or databases Manage many database environments Fewer DBAs to manage more environments Need to respond to performance problems DBAs must be able to track down root cause across several environments DBAs must be able to demonstrate the problem is not database related DBAK

4 The Past DBAK

5 The Present DBAK

6 How do you monitor environments? SQL Trace SQL*Plus Scripts StatsPack / AWR Third Party Monitoring Applications Users Prayer OEM (dbconsole) OEM Grid Control DBAK

7 Which Monitoring tools are best? All of them have their place All of the above methods have advantages and disadvantages Use the right tool for the right situation Don t become entirely dependent on GUIs Take a Top-Down Approach OEM is an ideal solution for a top down tuning approach Most other approaches are more suited for detailed analysis of individual problems DBAK

8 The need for a Top Down approach In complex environments it is difficult to find the problem much less address it <sarcasm> Database is always the performance bottleneck </sarcasm> The good old days of client server apps (i.e easy to trace) are long gone. DBAK

9 The WMS database is down! DBAK

10 Top Down Approach Use Groups and dashboards to quickly identify problems in the areas you care about Group dashboards give a high level view of targets DBAK

11 Top Down Approach cont. Start at a high level and drill down Quickly identify problems and drill into root cause DBAK

12 The ERP database is down! DBAK

13 Drilling into RAC environments DBAK

14 Performance Tab Summary OEM s performance page provides High level performance metrics on database performance A graphical representation of AWR data (10/11g) Top activity analysis and drilldown SQL Tuning Advisor (10/11g) DBAK

15 OEM Performance Tab (10g) DBAK

16 Top Activity Shows a 1-hour timeline of the top activity running on the database Displayed in 5-minute intervals Timeline graph gives the ability to look at past statements ASH and SQL Tuning available from this page DBAK

17 Top Activity DBAK

18 Top Consumers DBAK

19 SQL Tuning Advisor Runs a series of what-if scenarios and data analysis to better determine plan efficiency Provides a list of suggestions weighted by % improvement Only available with 10g or 11g + Diagnostics and Tuning option DBAK

20 SQL Tuning Advisor DBAK

21 Our ETL ran long, what happened? DBAK

22 Grid Control can show historical as well as real time data DBAK

23 ASH Reporting Shows active session history V$ACTIVE_SESSION_HISTORY DBA_HIST_ACTIVE_SESS_HIST The same report can be run from SQL*Plus OEM Takes care of formatting and parameters DBAK

24 ASH Reporting DBAK

25 A note about 8i and 9i databases Requires additional setup See section 10.3 of advanced configuration guide Lacks ADDM, AWR, ASH Still provides valuable information to a DBA DBAK

26 8i and 9i cont. Snapshots of an SQL statement DBAK

27 The web servers are crashing! What s wrong with the database?! DBAK

28 Interdependent targets are grouped into systems Different targets that fulfill a business need Host Database Listener Web servers Load Balancer All of the targets must be available to service the system DBAK

29 Services can monitor systems in OEM Create tests that run synthetic transactions Determine the availability of a service Critical system component availability Service availability Beacons can test service availability and performance from many locations Internal External Beacons give visibility to end user experience DBAK

30 Service test example DBAK

31 AD4J expands Grid Control s abilities AD4J stands for advanced diagnostics for Java Provides the ability to inspect JVM heaps Memory leak detection Provides the ability to profile individual threads Provides the ability to tie a thread to a database session Fully integrated into Grid Control as of OEM 11 Service Tests and Beacons provide the what - AD4J provides the why DBAK

32 AD4J Dashboard DBAK

33 AD4J Active Thread Trace DBAK

34 Beyond Performance Monitoring Performance monitoring it crucial but does not provide a complete solution Look at present and past activities, not a look ahead It is reactive Tactical The complete IT shop needs to look forward as well Capacity planning Operational budgeting DBAK

35 Beyond Performance Monitoring (cont.) OEM Grid Control repository is essentially an ODS Performance metrics gathered from all targets Configuration information about targets Utilization regarding targets Data from the OEM repository can be mined What is the average utilization of the EBS servers? How is that utilization trending? What is my breakout of different models of servers? Sun Op Center takes this concept further DBAK

36 The Future OEM Grid Control will continue to evolve Many recent acquisitions will be woven into the OEM brand/framework Sun Op Center Oracle will continue to improve on the end to end top down vision monitoring solution RUEI Op Center DBAK

37 Contact John Darrah DBAK

Performance Tuning with Oracle Enterprise Manager Session # S300610

Performance Tuning with Oracle Enterprise Manager Session # S300610 September 10, 2008 Prepared by John Darrah DBA Knowledge, Inc. Session # S300610 www.dbaknow.com Page 1 of 10 Introduction Oracle Enterprise