Model Repository Database Requirements
Informatica services and clients store data and metadata in the Model repository. Before you create the Model Repository Service, set up a database and database user account for the Model repository.
The Model repository supports the following database types:
- •IBM DB2 UDB
- •Microsoft SQL Server
- •Oracle
Allow 3 GB of disk space for DB2. Allow 200 MB of disk space for all other database types.
For more information about configuring the database, see the documentation for your database system.
IBM DB2 Database Requirements
Use the following guidelines when you set up the repository on IBM DB2:
- •If the repository is in an IBM DB2 9.7 database, verify that IBM DB2 Version 9.7 Fix Pack 7 or a later fix pack is installed.
- •On the IBM DB2 instance where you create the database, set the following parameters to ON:
- - DB2_SKIPINSERTED
- - DB2_EVALUNCOMMITTED
- - DB2_SKIPDELETED
- - AUTO_RUNSTATS
- •On the database, set the configuration parameters.
The following table lists the configuration parameters that you must set:
Parameter | Value |
|---|
applheapsz | 8192 |
appl_ctl_heap_sz | 8192 |
logfilsiz | 8000 |
maxlocks | 98 |
locklist | 50000 |
auto_stmt_stats | ON |
- •Set the tablespace pageSize parameter to 32768 bytes.
In a single-partition database, specify a tablespace that meets the pageSize requirements. If you do not specify a tablespace, the default tablespace must meet the pageSize requirements.
In a multi-partition database, specify a tablespace that meets the pageSize requirements. Define the tablespace in the catalog partition of the database.
- •Set the NPAGES parameter to at least 5000. The NPAGES parameter determines the number of pages in the tablespace.
- •Verify that the database user has CREATETAB, CONNECT, and BINDADD privileges.
- •Informatica does not support IBM DB2 table aliases for repository tables. Verify that table aliases have not been created for any tables in the database.
- •In the DataDirect Connect for JDBC utility, update the DynamicSections parameter to 3000.
The default value for DynamicSections is too low for the Informatica repositories. Informatica requires a larger DB2 package than the default. When you set up the DB2 database for the domain configuration repository or a Model repository, you must set the DynamicSections parameter to at least 3000. If the DynamicSections parameter is set to a lower number, you can encounter problems when you install or run Informatica services.
For more information about updating the DynamicSections parameter, see
Updating the DynamicSections Parameter of a DB2 Database.
Microsoft SQL Server Database Requirements
Use the following guidelines when you set up the repository on Microsoft SQL Server:
- • Set the read committed isolation level to READ_COMMITTED_SNAPSHOT to minimize locking contention.
To set the isolation level for the database, run the following command:
ALTER DATABASE DatabaseName SET READ_COMMITTED_SNAPSHOT ON
To verify that the isolation level for the database is correct, run the following command:
SELECT is_read_committed_snapshot_on FROM sys.databases WHERE name = DatabaseName
- •The database user account must have the CONNECT, CREATE TABLE, and CREATE VIEW privileges.
Oracle Database Requirements
Use the following guidelines when you set up the repository on Oracle:
- •Verify that the database user has the CONNECT, RESOURCE, and CREATE VIEW privileges.
- •Informatica does not support Oracle public synonyms for repository tables. Verify that public synonyms have not been created for any tables in the database.