6 Preparing the Database for an Enterprise Deployment

This chapter describes how to configure the Identity Management database repositories.

This chapter contains the following topics:

6.1 Overview of Preparing the Databases for an Identity Management Enterprise Deployment

The Identity Management components in the enterprise deployment use database repositories. This chapter describes how to perform the following steps:

6.2 Verifying the Database Requirements for an Enterprise Deployment

Before loading the metadata repository into your databases, check that they meet the requirements described in these subsections:

6.2.1 Databases Required

For Oracle Identity management, a number of separate databases are recommended. Table 6-1 provides a summary of these databases. Which database or databases you use depends on the topology that you are implementing.

The Oracle Metadata Services (MDS) Repository is a particular type of repository that contains metadata for some Oracle Fusion Middleware components. It can also include custom Java EE applications developed by your organization.

Table 6-1 Mapping between Databases and Schemas

Database Names Database Hosts Service Names Schemas in Database

IDMDB

IDMDBHOST1 IDMDBHOST2

OAMEDG.mycompany.com

OAM, IAU, ORASDPM, MDS
   

OIMEDG.mycompany.com

OIM, SOA_INFRA, MDS
   

OESEDG.mycompany.com

OPSS, MDS

The following sections apply to all the databases listed in Table 6-1.

6.2.2 Database Host Requirements

The database used to store the metadata repository should be highly available in its own right, for maximum availability Oracle recommends the use of an Oracle Real Application Clusters (RAC) database.

Ideally the database should use Oracle Automatic Storage Management (ASM) for the storage of data, however this is not necessary.

If using ASM, then ASM should be installed into its own Oracle home and have two disk groups:

  • One for the Database Files

  • One for the Flash Recovery Area

If you are using Oracle ASM, best practice is to also use Oracle Managed Files.

6.2.3 Database Versions Supported

To check if your database is certified or to see all certified databases, refer to the "Certified Databases" section in the Certification Document:

http://www.oracle.com/technetwork/middleware/ias/downloads/fusion-certification-100350.html

To determine the version of your installed Oracle Database, execute the following query at the SQL prompt:

select version from sys.product_component_version where product like 'Oracle%';

6.2.4 Patching the Oracle Database

Patches are required for some versions of Oracle Database.

6.2.4.1 Patch Requirements for Oracle Database 11g (11.1.0.7)

Table 6-2 lists patches required for Oracle Identity Manager configurations that use Oracle Database 11g (11.1.0.7). Before you configure Oracle Identity Manager 11g, be sure to apply the patches to your Oracle Database 11g (11.1.0.7) database.

Table 6-2 Required Patches for Oracle Database 11g (11.1.0.7)

Platform Patch Number and Description on My Oracle Support

Linux

7614692: BULK FEATURE WITH 'SAVE EXCEPTIONS' DOES NOT WORK IN ORACLE 11G
 

7000281: DIFFERENCE IN FORALL STATEMENT BEHAVIOR IN 11G
 

8327137: WRONG RESULTS WITH INLINE VIEW AND AGGREGATION FUNCTION
 

8617824: MERGE LABEL REQUEST ON TOP OF 11.1.0.7 FOR BUGS 7628358 7598314

6.2.4.2 Patch Requirements for Oracle Database 11g (11.2.0.2.0)

If you are using Oracle Database 11g (11.2.0.2.0), make sure that you download and install the appropriate version (based on the platform) for the RDBMS Patch Number 10259620. This is a prerequisite for installing the Oracle Identity Manager schemas.

Table 6-3 lists the patches required for Oracle Identity Manager configurations that use Oracle Database 11g Release 2 (11.2.0.2.0). Make sure that you download and install the following patches before creating Oracle Identity Manager schemas.

Table 6-3 Required Patches for Oracle Database 11g (11.2.0.2.0)

Platform Patch Number and Description on My Oracle Support

Linux x86 (32-bit)

Linux x86 (64-bit)

RDBMS Interim Patch#10259620.

If this patch is not applied, then problems might occur in user and role search and manager lookup. In addition, search results might return empty result.

Note:

  • Apply this patch in ONLINE mode. Refer to the readme.txt file bundled with the patch for the steps to be followed.

  • In some environments, the RDBMS Interim Patch has been unable to resolve the issue, but the published workaround works. Refer to the metalink note "Wrong Results on 11.2.0.2 with Function-Based Index and OR Expansion due to fix for Bug:8352378 [Metalink Note ID 1264550.1]" for the workaround. This note can be followed to set the parameters accordingly with the only exception that they need to be altered at the Database Instance level by using ALTER SYSTEM SET <param>=<value> scope=<memory> or <both>.

6.2.5 About Initialization Parameters

The databases must have the following minimum initialization parameters defined:

Table 6-4 Minimum Initialization Parameters for Oracle RAC Databases

Parameter Value

aq_tm_processes

1

dml_locks

200

job_queue_processes

10

open_cursors

800Foot 1 

session_max_open_files

50

sessions

500

processes

500

sga_target

512M

pga_aggregate_target

100M

sga_max_size

4G

session_cached_cursors

500

Footnote 1 OAM requires a minimum of 800 open cursors in the database. When OIM and OAM are available, the number of open cursors should be 1500.

If the database is being used for Oracle Internet Directory, it must have the following minimum initialization parameters defined:

Note:

For guidelines on setting up optimum parameters for the Database, see Oracle Fusion Middleware Performance and Tuning Guide.

6.3 Installing the Database for an Enterprise Deployment

Install and configure the database repository as follows.

Oracle Clusterware

Automatic Storage Management

  • For 10g Release 2 (10.2), see Oracle Database Oracle Clusterware and Oracle Real Application Clusters Installation Guide for your platform, listed in "Related Documents".

  • For 11g Release 1 (11.1), see Oracle Clusterware Installation Guide.

  • When you run the installer, select the Configure Automatic Storage Management option in the Select Configuration screen to create a separate Automatic Storage Management home.

Oracle Real Application Clusters

Oracle Real Application Clusters Database

Create a Real Applications Clusters Database with the following characteristics:

  • Database must be in archive log mode to facilitate backup and recovery.

  • Optionally, enable the Flashback database.

  • Create UNDO tablespace of sufficient size to handle any rollback requirements during the Oracle Identity Manager reconciliation process.

  • Database is created with ALT32UTF8 character set.

6.4 Creating Database Services

This section describes how to configure the database for Oracle Fusion Middleware 11g metadata. It contains the following topics:

6.4.1 Creating Database Services for 10.x and 11.1.x Databases

For complete instructions on creating database services, see the chapter on Workload Management in the Oracle Database Oracle Clusterware and Oracle Real Application Clusters Administration and Deployment Guide. Oracle recommends that a specific database service be used for a product suite, even when product suites share the same database. It is also recommended that the database service used is different than the default database service.

Use the CREATE_SERVICE subprogram to create the database services for the components in your topology. The lists of services to be created are listed in Table 6-1, "Mapping between Databases and Schemas".

  1. Log on to SQL*Plus as the sysdba user by typing:

    sqlplus "sys/password as sysdba"

    Then run the following command to create a service called OAMEDG.mycompany.com for Access Manager:

    EXECUTE DBMS_SERVICE.CREATE_SERVICE
(SERVICE_NAME => 'OAMEDG.mycompany.com',
NETWORK_NAME => 'OAMEDG.mycompany.com');

  2. Add the service to the database and assign it to the instances using srvctl:

    srvctl add service -d idmdb -s OAMEDG.mycompany.com -r idmdb1,idmdb2

  3. Start the service using srvctl:

    srvctl start service -d idmdb -s OAMEDG.mycompany.com

6.4.2 Creating Database Services for 11.2.x Databases

Use srvctl to create the database services for the components in your topology. The lists of services to be created are listed in Table 6-1, "Mapping between Databases and Schemas".

  1. Create service using the command srvctl add service, as follows.

    srvctl add service -d idmdb -s OAMEDG.mycompany.com -r idmdb1,idmdb2 -q FALSE -m NONE -e SELECT -w 0 -z 0

    The meanings of the command-line arguments are as follows:

    Option Argument

    -d

    Unique name for the database

    -s

    Service name

    -r

    Comma separated list of preferred instances

    -q

    AQ HA notifications (TRUE or FALSE)

    -e

    Failover type (NONE, SESSION, or SELECT)

    -m

    Failover method (NONE or BASIC)

    -w

    Failover delay (integer)

    -z

    Failover retries (integer)

  2. Start the Service using srvctl start service

    srvctl start service -d idmdb -s OAMEDG.mycompany.com

  3. Validate the service started by using srvctl status service, as follows:

    srvctl status service -d idmdb -s OAMEDG.mycompany.com
Service OAMEDG.mycompany.com is running on instance(s) idmdb1,idmdb2

  4. Validate that the service was created correctly by using srvctl config service:

    srvctl config service -d idmdb -s OAMEDG.mycompany.com
Service name: OAMEDG.mycompany.com
Service is enabled
Server pool: IDMDB_OIDEDG.mycompany.com
Cardinality: 2
Disconnect: false
Service role: PRIMARY
Management policy: AUTOMATIC
DTP transaction: false
AQ HA notifications: false
Failover type: SELECT
Failover method: NONE
TAF failover retries: 0
TAF failover delay: 0
Connection Load Balancing Goal: LONG
Runtime Load Balancing Goal: NONE
TAF policy specification: NONE
Edition:
Preferred instances: idmdb1,idmdb2
Available instances:

Note:

For more information about the SRVCTL command, see the Oracle Real Application Clusters Administration and Deployment Guide.

6.4.3 Database Tuning

The database parameters defined in Section 6.3, "Installing the Database for an Enterprise Deployment" are only a guide. You might need to perform additional tuning after the system is in use. For more information, see Database Performance Tuning Guide.

Refresh the database statistics after you initially load the database, and on an ongoing basis. To do that, issue the following SQL*Plus command:

exec DBMS_STATS.GATHER_SCHEMA_STATS(OWNNAME=> '<OIM_SCHEMA>', ESTIMATE_PERCENT=>DBMS_STATS.AUTO_SAMPLE_SIZE, DEGREE=>8, OPTIONS=>'GATHER AUTO', NO_INVALIDATE=>FALSE);

6.5 Preparing the Database for Repository Creation Utility (RCU)

To prepare the Oracle Database, follow the instructions in the section "RCU Requirements for Oracle Databases" in the Oracle Fusion Middleware System Requirements and Specifications.

Execute the following commands to create XATRANS Views:

cd DB_ORACLE_HOME/rdbms/admin
sqlplus / as sysdba
@xaview.sql

6.6 Loading the Identity Management Schemas in the Oracle RAC Database by Using RCU

You run RCU to create the collection of schemas used by Identity Management and Management Services.

  1. Start RCU by issuing this command:

    RCU_HOME/bin/rcu &

  2. On the Welcome screen, click Next.

  3. On the Create Repository screen, select the Create operation to load component schemas into a database. Then click Next.

  4. On the Database Connection Details screen, provide the information required to connect to an existing database. For example:

    Database Type: Oracle Database

    • Host Name: Enter the VIP address of one of the RAC database nodes or the database SCAN address, for example: DB-SCAN.mycompany.com

    • Port: The port number for the database listener (DB_LSNR_PORT). For example: 1521

    • Service Name: The service name of the database. For example OAMEDG.mycompany.com.

      Use the service names for the components you will select from the table in Step 6.

    • Username: sys

    • Password: The sys user password

    • Role: SYSDBA

    Click Next.

  5. On the Check Prerequisites screen, click OK after the prerequisites have been validated.

  6. On the Select Components screen, provide the following values:

    Create a New Prefix: Enter a prefix to be added to the database schemas. Note that all schemas are required to have a prefix. For example, enter EDG.

    Components: Select the appropriate components from the following table for the topology you are using.

    Product RCU Option Service Name Comments

    Oracle Platform Security Services

    AS Common Schemas–Oracle Platform Security Service

    		  

    Required to hold policy store information. Mandatory for all topologies.

    Oracle Access Management Access Manager

    Identity Management–Access Manager

    OAMEDG.mycompany.com

    Audit Services will also be selected.

    Oracle Identity Manager

    Identity Management–Oracle Identity Manager

    OAMEDG.mycompany.com

    Metadata Services, SOA infrastructure, and User Messaging will also be selected.

    Click Next.

    Notes:

    If your topology requires more than one database, the following important considerations apply:

    • Be sure to install the correct schemas in the correct database.

    • You might have to run the RCU more than once to create all the schemas for a given topology.

    • Table 6-1 in this chapter provides the recommended mapping between the schemas and their corresponding databases. Refer to this table to ensure that the correct details are entered in this screen.

  7. On the Check Prerequisites screen, click OK after the prerequisites have been validated.

  8. On the Schema Passwords screen, enter the passwords for the schemas. You can choose to use either the same password for all the schemas or different passwords for each of the schemas. Oracle recommends choosing different passwords for different schema's to enhance security

    Click Next.

  9. On the Map Tablespaces screen, accept the defaults and click Next.

  10. On the confirmation screen, click OK to allow the creation of the tablespaces.

  11. On the Creating tablespaces screen, click OK to acknowledge creation of the tablespaces.

  12. On the Summary screen, the summary and verify that the details provided are accurate. Click Create to start the schema creation process.

  13. On the Completion summary screen, verify that the schemas were created.

    Click Close to exit.

6.7 Backing up the Database

After you have prepared your database, back it up as described in Section 17.6.3.3, "Backing Up the Database."