TheGrandParadise.com Essay Tips How do I add a redo log group in RAC?

How do I add a redo log group in RAC?

28/07/202228/07/2022| Shirley GriffinShirley Griffin| 0 Comment | 12:00 AM
Categories:

How do I add a redo log group in RAC?

Steps to add redo log groups to Oracle RAC setup

  1. Check existing redo log groups & redo log file size. SQL> column REDOLOG_FILE_NAME format a50; SQL> set lines 1000.
  2. As we checked redo log file location & size, we will proceed for redo log group addtions.
  3. Check for newly added redo log groups:

How do I drop and add redo logs in Oracle?

Dropping Online Redo Log Members To drop a member of an online redo log group use the following command: ALTER DATABASE DROP LOGFILE MEMBER ‘/DISK4/log2b. dbf’; Same statement holds good for OMF, find the logfile member full_path_file_name and drop the member.

How do you force a redo log group to drop in Oracle?

To drop specific inactive redo log members, use the ALTER DATABASE statement with the DROP LOGFILE MEMBER clause. The following statement drops the redo log /oracle/dbs/log3c. rdo : ALTER DATABASE DROP LOGFILE MEMBER ‘/oracle/dbs/log3c.

How do you increase a redo log?

Use the following steps to update redo log size and files:

  1. Log in to the database node/VM (rp2vm2) as oracle user.
  2. Connect to sqlplus.
  3. Update redo log file size and increase groups using the steps captured below.
  4. Switch the log file to the newly added redo log groups and delete the old inactive groups.

How do you rename redo log file online or offline?

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 rename a redo log in Oracle?

How do I resize a Redolog group?

Resize Redo Logs

  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.

Can we resize redo log file?

We cannot resize the redo log files. We must drop the redolog file and recreate them .

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 log groups are required by Oracle?

two redo log groups
A database must have a minimum of two redo log groups.

How to create new redo log members for an existing group?

To create new redo log members for an existing group, use the SQL statement ALTER DATABASE with the ADD LOGFILE MEMBER clause. The following statement adds a new redo log member to redo log group number 2:

How to resize the redo log files (members)?

Since there is no provision for resizing the redo log files (members), we need to recreate the redo log groups either by adding groups or dropping groups in order to increase or decrease the size. In this article, we will be discussing how to create and drop redo log groups along with add member to group:

What is a member of a redo group?

Online Redo Log Members – Each online redo log file in a group is called a member. – Each member in a group has an identical log sequence numbers and the same size. – The log sequence number is assigned each time the server starts writing to a log group to identify each redo log file uniquely.

How do I create a redo log file in SQL?

Creating Redo Log Groups 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.rdo’) SIZE 100M;

https://www.youtube.com/watch?v=S1zXtlUwZ3g