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Oracle® Enterprise Manager System Monitoring Plug-in Installation Guide for IBM DB2 Database
Release 12 (3.4.1.1.0), Release 9 (3.4.1.0.0), and Release 8 (3.3.1.0.0)
Part Number E12777-04
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Oracle® Enterprise Manager

System Monitoring Plug-in Installation Guide for IBM DB2 Database

Release 12 (3.4.1.1.0), Release 9 (3.4.1.0.0), and Release 8 (3.3.1.0.0)

E12777-04

November 2010

This document provides a brief description about the Oracle System Monitoring Plug-In for IBM DB2 Database, details on the versions the plug-in supports, prerequisites for installing the plug-in, and step-by-step instructions on how to download, install, verify, and validate the plug-in.

Description

The System Monitoring Plug-in for IBM DB2 Database extends Oracle Enterprise Manager Grid Control to add support for managing IBM DB2 UDB (LUW) database instances. By deploying the plug-in in your Grid Control environment, you gain the following management features:

Platforms Supported

The plug-in supports monitoring of IBM DB2 UDB (LUW) on all the platforms where IBM DB2 UDB can be installed.

Versions Supported

This plug-in supports the following versions of products:

Prerequisites

The following prerequisites must be met before you can use the plug-in:

Setting Up the JDBC Driver

The JDBC driver is available from IBM, and consists of the following files that the Agent must be able to access:

To set up the IBM DB2 Universal Type 4 JDBC driver, do the following:

  1. Create a jdbcdriver directory under $ORACLE_HOME/sysman and place the .jar files listed above in that directory.

  2. Add the location of each individual driver .jar file to the classpath.lst file under the $ORACLE_HOME/sysman/config directory.

  3. If the Agent is installed on a system that is part of an OS cluster, then you need to edit the classpath.lst file under the $ORACLE_HOME/<node_name>/sysman/config directory, where node_name is the name of the system where the Agent is installed.

    If the classpath.lst file does not exist, create the file. For example, the classpath.lst file in a UNIX environment might appear as shown in the following example:

    /home/usera/agent/sysman/jdbcdriver/ibm/db2jcc.jar

    /home/usera/agent/sysman/jdbcdriver/ibm/db2jcc_javax.jar

    /home/usera/agent/sysman/jdbcdriver/ibm/db2jcc_license_cu.jar

Configure the Management Agent to Deploy the Plug-In

To configure the Agent,you must first ensure that the user starting the Agent service belongs to the Local Administrators Group. Also, you must set the preferred credentials on all Agents where you want to deploy the plug-in. To do so, follow the instructions given in the following sections.

Assigning Advanced Privileges to User

To assign advanced privileges, do the following:

  1. Locally on the Microsoft Windows node hosting the Agent, check that the user starting the Agent service belongs to the Local Administrators Group. If not, add it.

  2. Open the Local Security Settings Windows Tool and give the following Advanced Privileges to the user starting the Agent service:

    • Act as part of the operating system

    • Adjust memory quotas for a process

    • Logon as batch job

    • Replace a process level token

  3. Restart the Agent service if it is running.

  4. Set the Preferred Credentials for the Host and the Agent in the Grid Control. For more information, see Setting and Validating Preferred Credentials .

    • The OS user set in the Preferred Credentials must belong to the Local Administrators Group.

    • This OS user must have the following Advanced Privileges:

      • Act as part of the operating system

      • Adjust memory quotas for a process

      • Logon as batch job

      • Replace a process level token

Setting and Validating Preferred Credentials

To set the preferred credentials on all Agents where you want to deploy the plug-in, do the following:

  1. In Enterprise Manager Grid Control, click Preferences.

  2. In the Preferences page, click Preferred Credentials in the left pane.

    The Preferred Credentials page appears.

  3. For the corresponding Target Type, for the Host target type, from the Set Credentials column, click the icon.

  4. In the Host Preferred Credentials page, in the Target Credentials section, for the host that is running the Management Agent where the plug-in has to be deployed, specify the user name and password.

  5. After setting the credentials, on the same page, click Test. If you test runs successfully, your credentials are set correctly.

  6. Run the OS Command job for the Management Agent where the plug-in has to be deployed.

    • Log in to Enterprise Manager Grid Control.

    • Click the Jobs tab.

    • In the Job Activity page, from the Create Job list, select OS Command, and click Go.

    • Fill up the details required in the following pages, and click Submit to run the job. If the job runs successfully, your credentials are set correctly.

Using a Suitable Operating System User and Assigning Authorities and Privileges

The System Monitoring Plug-In for IBM DB2 accesses the table functions used in IBM DB2. For the plug-in to have access to the table functions, you have to use a suitable operating system user and assign this new user to a user group. The operating ssytem user must have at least the minimum privileges. In addition, you have to assign the correct authority levels to this user.

Note:

IBM DB2 users must be operating system users. IBM DB2 cannot have its own database users because it relies on the host operating system for security.

If you do not have an operating system user already created, first, create one on the host where IBM DB2 is running. Then, follow these steps to assign this user to a new or existing UserGroup.

  1. Open the IBM DB2 Control Center.

  2. From the tree view, select the database or database alias to which you want to connect.

  3. Connect as an admin user.

  4. From the tree view, select User and Group Objects.

  5. From the right pane, select the already-created operating system user.

  6. From the Authorities panel, select Connect to Database.

  7. To verify the applied changes, try connecting to the database.

Note:

These steps can also be performed from command line using IBM DB2 SQL.

Also, assign authorities and privileges for the operating system UserGroup. The authorities supported with IBM DB2 are SYSADM, SYSCTRL, SYSMAINT, DBADM, and LOAD. The SYSADM, SYSCTRL, and SYSMAINT authorities cannot be granted using the GRANT SQL statement. These special authorities can only be set from the database manager configuration file. DBADM privilege can only be granted by user at SYSADM authorization level.

SYSMON authority level is required to monitor IBM DB2. This level is required to access the table functions, such as SYSPROC.SNAPSHOT_DATABASE, which are used in IBM DB2.

Follow these steps to set SYSMON authority level to your UserGroup:

  1. At the db2=> prompt, run the following commands:

    db2=> update dbm cfg using sysmon_group USERGROUP
db2 => db2stop
db2 => db2start

  2. To check whether the changes are effective, run the following command:

    db2 => get dbm cfg

    The following will be the output of the previous command:

    Database Manager Configuration
Node type = Enterprise Server Edition with local and remote clients
.....
   SYSADM group name     (SYSADM_GROUP)   =
   SYSCTRL group name    (SYSCTRL_GROUP)  =
   SYSMAINT group name   (SYSMAINT_GROUP) = 
   SYSMON group name     (SYSMON_GROUP)   = USERGROUP
......

Note:

To understand how authorities and privileges are implemented in IBM DB2, access the IBM Web site.

Deploying the Plug-in

After you ensure that the prerequisites are met, follow these steps to deploy the plug-in:

  1. Download the IBM DB2 Database Plug-in archive to your desktop or computer on which the browser is launched. You can download the archive from the Oracle Technology Network (OTN).

  2. Log in to Enterprise Manager Grid Control as a Super Administrator.

  3. Click the Setup link in the upper right corner of the Grid Control Home page, then click the Management Plug-ins link on the left side of the Setup page.

  4. Click Import.

  5. Click Browse and select the plug-in archive.

  6. Click List Archive.

  7. Select the plug-in and click OK.

  8. Verify that you have set preferred credentials on all Agents where you want to deploy the plug-in.

  9. In the Management Plug-ins page, click the icon in the Deploy column for the DB2 Database plug-in. The Deploy Management Plug-in wizard appears.

  10. Click Add Agents, then select one or more Agents to which you want to deploy the plug-in. The wizard reappears and displays the Agent you selected.

  11. Click Next, then click Finish.

    If you see an error message stating that the preferred credential is not set up, go to the Preferences page and add the preferred credentials for the Agent target type.

    If there are no errors, then you will see the following screen:

    Figure 1 Successful Deployment

    Successful Deployment

Configuring IBM DB2 for Health Indicator Metrics and Database Monitoring Metrics

The following sections explain the postinstallation configuration steps you need to perform on IBM DB2.

Configurations Required for Health Indicator Metrics

The health indicators for instance and database objects are enabled and disabled using the database manager configuration parameter -- HEALTH_MON. Then, the table functions -- HEALTH_TBS_HI, HEALTH_DB_HI, and HEALTH_DBM_HI get populated. These functions are used by the plug-in to show the alerts triggered based on the thresholds of health indicators.

Note:

Enabling these settings may result in some overheads, such as CPU and memory. Therefore, follow these steps only if you want to view the Health Indicator metrics.

To enable or disable the HEALTH_MON by CLP (Command Line Processor), run the following command:

db2==> update dbm cfg using HEALTH_MON [on;off]

To check if your changes are effective, run the following command:

db2==> get dbm cfg

The following is the output:

.....
.....
.....
Monitor health of instance and databases (HEALTH_MON) = ON
.....
..........

For more information, access the IBM Web site.

Configurations Required for Avoiding Metric Collection Errors for Database Monitoring Metrics

To avoid metric collection errors for for the "Database Monitoring" metrics, make a call to the GET_DBSIZE_INFO package so that the STMG_DBSIZE_INFO table gets created and populated with the required data.

The GET_DBSIZE_INFO procedure calculates the database size and maximum capacity. The calculated values are returned as procedure output parameters and cached in the SYSTOOLS.STMG_DBSIZE_INFO table. The procedure caches these values because the calculations are costly.

The SYSTOOLS.STMG_DBSIZE_INFO table is created automatically the first time the procedure runs. If there are values cached in the SYSTOOLS.STMG_DBSIZE_INFO table and they are current enough, as determined by the snapshot-timestamp and refresh-window values, then these cached values are returned.

If the cached values are not current enough, new cached values are calculated, inserted into the SYSTOOLS.STMG_DBSIZE_INFO table and returned, and the snapshot-timestamp value is updated. The last parameter in the GET_DBSIZE_INFO call is refresh window.

Default value refresh window (time difference between successive calls) is 30 minutes. If your database is growing at a faster rate, then you can set a lower value.

To make a call to GET_DBSIZE_INFO by CLP (Command Line Processor), run the following command:

db2==>CALL GET_DBSIZE_INFO(?, ?, ?, -1)

In this case, the refresh window is 30 minutes.

For more information, access the BIM Web site.

Adding Instances for Monitoring

After successfully deploying the plug-in, follow these steps to add the plug-in target to Grid Control for central monitoring and management:

  1. From the Agent home page where the plug-in was deployed, select the IBM DB2 Database target type from the Add drop-down list, then click Go. The Add IBM DB2 Database page appears.

  2. Provide the following information for the properties:

    • Name — Name for the plug-in

    • JDBC URL — URL name for the IBM DB2 JDBC Driver connectivity.

      For example,

      jdbc:db2://<server>:<port>/<database>

      The JDBC URL argument represents a data source. Parameter definitions are as follows:

      • jdbc:db2 — Indicates that the connection is to a DB2 UDB server.

      • server — Domain name or IP address of the database server.

      • port — TCP/IP server port number assigned to the database server, which is an integer between 0 and 65535.

      • database — Database alias, which refers to the DB2 database catalog entry on the DB2 client.

        database is the database name defined during DB2 UDB (LUW) installation.

    • JDBC Driver — (Optional) Name of the DB2 Universal JDBC Driver.

      For example,

      com.ibm.db2.jcc.DB2Driver

    • Username — Valid user name for the database.

      For more information, see Using a Suitable Operating System User and Assigning Authorities and Privileges.

    • Password — Password for the user.

  3. Click Test Connection to make sure the parameters you entered are correct.

  4. For Oracle Management Service version 10g Release 3 (10.2.0.3) or lower, reenter the encrypted parameters from step 2 if the connection test was successful, then click OK.

    Note:

    For Oracle Management Service 10g Release 3 (10.2.0.3), if you do not reenter the encrypted parameters before clicking OK, you might encounter an error informing you that the login failed.

Figure 2 Add IBM DB2 Database

Add IBM DB2 Database

Note:

After you deploy and configure the plug-in to monitor one or more targets in the environment, you can customize the monitoring settings of the plug-in. This alters the collection intervals and threshold settings of the metrics to meet the particular needs of your environment. If you decide to disable one or more metric collections, this could impact the reports that the metric is a part of.

Verifying and Validating the Plug-in

After waiting a few minutes for the plug-in to start collecting data, follow these steps to verify and validate that Enterprise Manager is properly monitoring the plug-in target:

  1. Click the IBM DB2 Database target link from the Agent home page Monitored Targets table.

    The IBM DB2 Database home page appears.

    Figure 3 IBM DB2 Database Home Page

    IBM DB2 Database Home Page

  2. Verify that no metric collection errors are reported in the Metrics table.

  3. Ensure that reports can be seen by selecting the Reports property page.

  4. Ensure that configuration data can be seen by clicking the View Configuration link in the Configuration section. If configuration data does not immediately appear, click Refresh in the View Configuration page.

Upgrading the Plug-in

Follow these steps to upgrade the plug-in:

  1. Download the IBM DB2 Plug-in archive to your desktop or computer on which the browser is launched. You can download the archive from the Oracle Technology Network (OTN).

  2. Log into Enterprise Manager Grid Control as a Super Administrator.

  3. Click the Setup link in the upper right corner of the Grid Control Home page, then click the Management Plug-ins link on the left side of the Setup page.

  4. Click Import.

  5. Click Browse and select the plug-in archive that you have downloaded for upgrading.

  6. Click List Archive.

  7. Select the plug-in and click OK.

  8. Verify that preferred credentials are set on all Agents to which you want to deploy the plug-in.

  9. Blackout the IBM DB2 targets for agents to which you want to deploy higher version of the plug-in. Ensure that you select immediate blackout.

  10. In the Management Plug-ins page, click the icon in the Deploy column for the IDM DB2 plug-in. The Deploy Management Plug-in wizard appears.

  11. Click Add Agents, then select one or more Agents to which you want to deploy the plug-in. The wizard reappears and displays the Agent you selected.

  12. Click Next, then click Finish.

    If you see an error message stating that the preferred credential is not set up, go to the Preferences page and add the preferred credentials for the Agent target type.

  13. Remove blackout for the targets (required only if Step 9 applies).

Undeploying the Plug-in

Follow these steps to undeploy the plug-in from an Agent:

  1. Log in to Enterprise Manager Grid Control as a Super Administrator.

  2. Select the Targets tab, then the All Targets subtab.

  3. Select the DB2 Database Plug-in target and click Remove. You must do this step for all targets of the specific version of the plug-in.

  4. Make sure that the preferred credentials are set on the Agents where the plug-in is deployed.

  5. Click the Setup link in the upper right corner of the All Targets page, then click the Management Plug-ins link on the left side of the Setup page. The Management Plug-ins page appears.

  6. Click the icon in the Undeploy column for the IBM DB2 Database plug-in. The Undeploy Management Plug-in page appears.

  7. Check all the Agents that are currently deployed with the DB2 Database Management plug-in and click OK.

    You must undeploy the plug-in from every Agent in the system to completely remove it from the enterprise.

  8. Select the IBM DB2 Database Management Plug-in on the Management Plug-ins page and click Delete.

Troubleshooting the Plug-In

For information about the troubleshooting scenarios that you might encounter while working with the System Monitoring plug-ins, see the Enterprise Manager System Monitoring Plug-in Troubleshooting Guide available on OTN at the following URL.

http://www.oracle.com/technetwork/oem/grid-control/documentation/oem-091904.html

On the OTN page, click View Library. Then, in the Enterprise Manager documentation library, click the Plug-ins tab, and look for the troubleshooting guide.

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System Monitoring Plug-in Installation Guide for IBM DB2 Database, Release 12 (3.4.1.1.0), Release 9 (3.4.1.0.0), and Release 8 (3.3.1.0.0)

E12777-04

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