Prior to running backup operations, you can check datafiles for physical and logical corruption.
Prior to running backup operations, you can validate a backup job, which will cause RMAN to simulate the backup for the purpose of determining whether the backup can be successfully restored. Once a validate job is completed, you can view the log files of the job to identify and correct any validation issues.
During validation, the backup jobs are simulated without the media, you can view the log files of the job to identify and correct any validation issues.
Before you run a backup, you can check the following:
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Datafiles for physical and logical block corruption
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Database files exist and are in the correct location.
Procedure
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From the CommCell Browser, navigate to Client Computers | <RAC Client> | <Instance>.
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Right-click the <Subclient>, and then click Properties.
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Click the Advanced tab, and then click the Options tab.
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Select the Validate check box.
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Click OK.