How do I change the redo log size in Oracle?

How do I change the redo log size in Oracle?

To increase redo log size from 50MB to 1GB, we take the following steps to reach the goal.

1. Check Current Redo Logs.
2. Add 3 Groups with New Size (1GB)
3. Switch Logfile to New Groups.
4. Force a CheckPoint.
5. Drop Group 1, 2, 3.
6. Remove Redo Log Files.
7. Add Group 1, 2, 3 with New Size (1GB)
8. Switch Logfile Several Times.

How do I resize a standby redo log?

SQL> alter system set standby_file_management = manual; System altered. On the primary database, check the status of the Online Redo Logs and resize them by dropping the INACTIVE redo logs and re-creating them with the new size.

How do I resize a redo log in Oracle 12c RAC?

Resize the redo log file in RAC Environment as follows:

1. Check the size of redo log and how many redo log file present in each instance.
2. Check the thread information if you needed which thread belong to which instance.
3. Retrieve all the information of member and location.
4. You want to increase the size of redo log files.

Can I have redo log groups with different size?

All members of the same multiplexed redo log group must be the same size. Members of different groups can have different sizes. However, there is no advantage in varying file size between groups.

How do I rename a redo log in Oracle?

To rename redo log members, you must have the ALTER DATABASE system privilege….

1. Shut down the database.
2. Copy the redo log files to the new location.
3. Startup the database, mount, but do not open it.
4. Rename the redo log members.

How do I drop standby and redo log group in Oracle?

How to drop the standby redo logs

1. Enviroment.
2. SET STANDBY_FILE_MANAGEMENT=’MANUAL’
3. Drop SRL On Standby.
4. SET STANDBY_FILE_MANAGEMENT=’AUTO’
5. Enable MRP.
6. Enviroment.
7. SET STANDBY_FILE_MANAGEMENT=’MANUAL’
8. Drop SRL On Standby.

How do you add a redo log to a standby database?

Adding Redo Logfiles in Standby Database:

1. Check the member present in standby database.
2. Cancel the recovery Process.
3. Check the standby_file_management parameter and set the parameter to MANUAL.
4. Add Redo Logfiles in Standby Database.
5. Check the Redo Logfiles.

What size should redo log be?

The minimum size permitted for a redo log file is 4 MB.

How do I add a redo log group in Oracle 12c?

To create a new group of redo log files, use the SQL statement ALTER DATABASE with the ADD LOGFILE clause. The following statement adds a new group of redo logs to the database: ALTER DATABASE ADD LOGFILE (‘/oracle/dbs/log1c. rdo’, ‘/oracle/dbs/log2c.

How many redo logs are needed in Oracle?

Oracle Database uses only one redo log files at a time to store redo records written from the redo log buffer.

How do I change the redo log location?

How to relocate the redo log files to a different location on…

1. Shut down the database.
2. Copy the online redo log files to the new location.
3. Startup the database in mount mode, but do not open it.
4. Rename the online redo log members.
5. Open the database for normal operation.

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