You use archive logs backups to recover database transactions that have been lost due to an operating system or disk failure or to recover lost database transactions.
You apply the archive logs to an online backup to recover the database.
Create separate subclients to back up log files because they help ensure complete database recovery.
You can create an automatic schedule to automatically run a database log backup when specific criteria are met. For example, you can request that a log backup run when the archive log destination fills up to a specified capacity. For information on how to configure an automatic schedule, see Creating an Automatic Schedule for Database Log Backups. When you configure the automatic schedule, select a backup type of Full on the Backup Options tab of the dialog.
Before You Begin
Optional: You can have data and log backups use different compression. If you want to use the MediaAgent for compression for log backups, see Enabling MediaAgent Compression for Oracle or Oracle RAC Log Backups.
Procedure
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From the CommCell Browser, navigate to Client Computers | <RAC Client>.
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Right-click the <Instance>, point to All Tasks, and then click New Subclient.
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In the Subclient Name box, type the subclient name.
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On the Log Backup tab, select Backup Archive Log.
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On the Storage Device tab, from the Storage Policy list, select the storage policy name.
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Click OK.