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- Oracle Server Configuration and Sizing Guidelines
- Oracle Parameter Settings
- Oracle Tablespaces
- Oracle Tablespace Settings
- Using RAID Configuration
- Connecting to an Oracle Database Using Service Name
- Configuring Oracle JDBC Driver
- Composite Indexes vs. Non Composite Indexes
- Checklist for Universal CMDB Support and Certification
- How to Enable UCMDB to Work on Oracle Container Database (CDB)
- How to Enable Support for Oracle Advanced Security (ASO) in Generic Database Adapter Based Integrations
- How to Connect UCMDB Server Container to the Oracle Database with Advanced Security Option (ASO) Enabled
Oracle Tablespace Settings
This section describes the storage settings and file sizing guidelines for data tablespaces, temporary tablespaces, redo logs, and undo tablespaces.
The following table specifies the recommended sizes for
Tablespace |
|
Remarks | |
---|---|---|---|
Small | Large | ||
CMDB | 5 GB | 60 GB | The specified size is a minimum requirement. |
Note The data in the table is only relevant when the following parameters are assigned their default values:
-
the Oracle parameter deferred_segment_creation is set to true (only relevant for Oracle 11g R2)
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the tablespace setting INITIAL_EXTENT is set to 65,536
Data Tablespace Default Storage Settings
The storage settings for data tablespaces should be:
- Locally managed tablespace
- Automatic segment space management
- Automatic local extent management
The following command can be used to create a data tablespace:
CREATE TABLESPACE <tablespace name> DATAFILE ’<data file full path>’ REUSE SIZE <file size>
EXTENT MANAGEMENT LOCAL SEGMENT SPACE MANAGEMENT AUTO;
For example:
CREATE TABLESPACE APPTBS DATAFILE
’/ORADATA/ORCL/APPTBS1.DBF’ REUSE SIZE 1024M
EXTENT MANAGEMENT LOCAL SEGMENT SPACE MANAGEMENT AUTO;
The following table specifies the recommended settings for system tablespaces:
Tablespace |
|
|
---|---|---|
Small | Large | |
SYSTEM | 2 GB | 5 GB |
SYSAUX | 2 GB | 5 GB |
The System Tablespace storage default settings should be:
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Locally managed tablespace
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Segment space management:
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SYSAUX: Automatic
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SYSTEM: Manual
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Automatic local extent management
The following table specifies the recommended settings for temporary tablespaces:
Tablespace |
|
Remarks | |
---|---|---|---|
Small | Large | ||
TEMP | 1 GB | 10 GB | Use multiple files with large tablespaces. |
TEMP storage settings | Uniform allocation: 2 MB | Uniform allocation: 2 MB |
|
The following table specifies the recommended settings for redo log files:
Setting |
|
|
---|---|---|
Small | Large | |
Redo log file size | 100 MB | 200 MB - 500 MB |
Minimum number of groups | 4 | 4 |
Minimum number of members per group | 2 | 2 |
The following table specifies the recommended Undo settings:
Setting |
|
Remarks | |
---|---|---|---|
Small | Large | ||
Undo tablespace size | 1 GB | 10 GB | The number of segments, the minimum number of extents, and the rollback segment size (initial, next) are all set automatically by Oracle. |
UNDO_ MANAGEMENT parameter | AUTO | Oracle default value | |
UNDO_ RETENTION parameter | Oracle default value |
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