The Redo Log Groups folder contains each redo log group of the database. Redo log files are used to hold a record of all changes made to data. If a database failure occurs before this data is written to disk, the changes can be obtained from the redo log files. This prevents data from ever being lost.
When you select the Redo Log Groups object type container in the Navigator tree, a Summary View is displayed on the right. This list includes a row for each redo log group in the database. The columns of the list are:
Group : Group number of the redo log group.
Thread: Thread number used in cluster database environments.
Note: Thread is not displayed if you do not have the Oracle Real Application Clusters (Oracle RAC) option.
Size (K): Space allocated in kilobytes to the redo log group.
Copyright © 1996, 2011, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its affiliates.
Other names may be trademarks of their respective owners.