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NetVault Plug-in for Oracle 7.1 - User Guide

Introducing Dell™ NetVault™ Backup Plug‑in for Oracle® Defining a backup strategy Installing and removing the plug-in Configuring the plug-in Backing up data Using the Oracle Flashback Database Restoring data
Restoring and recovering data – an overview Performing User Managed restores Using advanced User Managed restore procedures Performing RMAN restores Using RMAN types of recovery in a non-RAC environment Using advanced procedures with RMAN restores
Maintaining the Recovery Catalog Using the RMAN CLI Using the Plug-in with Oracle RAC Using the Plug-inin a failover cluster environment Using the plug-in with Oracle Data Guard Troubleshooting Glossary About Dell

Maintaining the Recovery Catalog

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Resynchronizing the Recovery Catalog

Resynchronizing the Recovery Catalog

Plug‑in for Oracle automatically executes a full or partial resynchronization of the Recovery Catalog when performing RMAN backups as long the Control File is mounted and the Recovery Catalog database is available at command execution.
You can use RMAN’s RESYNC CATALOG command to perform manual Full Resynchronizations when:
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The Recovery Catalog is unavailable when you issue any of the commands that automatically perform a resynchronization.
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The database is backed up infrequently (for example, hundreds of archive logs are archived between database backups) and generates a high number of log switches every day (for example, 1000 switches between catalog resynchronizations)
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You have made changes to the physical structure of the target database such as adding or dropping a tablespace. As with archive operations, the Recovery Catalog is not updated automatically when the physical schema changes.
You should not need to run RESYNC CATALOG very often. For more information, refer to Using CROSSCHECK to Update the RMAN Repository in the Oracle Database Backup and Recovery Advanced User’s Guide.
To force a Full Resynchronization of the Recovery Catalog
1
Start RMAN, and connect to the target database and Recovery Catalog.
> rman TARGET / CATALOG rman/<password>@<connect_identifier for catalog>
2
Mount the target database.
STARTUP MOUNT;
3
Resynchronize the Recovery Catalog.
RESYNC CATALOG;
4
Exit RMAN.
Using CROSSCHECK to update the RMAN repository
To ensure that data about backups in the RMAN Repository is synchronized with corresponding data in the NetVault Database, perform a crosscheck. The CROSSCHECK command updates outdated RMAN repository information about backups whose repository records do not match their physical status. For example, if a user removes archive logs from disk with an OS command, the repository still indicates that the logs are on disk, when in fact they are not.
For more information on the CROSSCHECK command, refer to the Oracle Database Backup and Recovery Basics guide.
To crosscheck the archive logs
1
Start RMAN, and connect to the target database and Recovery Catalog.
> rman TARGET / CATALOG rman/<password>@<connect_identifier for catalog>
2
Crosscheck the archive logs.
CROSSCHECK ARCHIVELOG ALL;
3
Exit RMAN.

Using the RMAN CLI

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CLI-based RMAN backups and restores – an overview
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Prerequisites for CLI-based backups and restores
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Performing CLI-based backups
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Performing CLI-based restores

CLI-based RMAN backups and restores – an overview

If you want to take advantage of advanced RMAN features that are not supported via Plug‑in for Oracle’s interface, you can perform CLI-based RMAN backups and restores instead of, or in conjunction with, the plug-in. During CLI-based RMAN backups and restores, the plug-in provides media management functionality for RMAN.
 
 
*IMPORTANT: Prior to using this functionality, Dell strongly recommends that you thoroughly review the Oracle Database Backup and Recovery Advanced User’s Guide to familiarize yourself with the internals of RMAN.
Before completing any additional or different steps that are outlined in this section, make sure that you review the information provided in the previous sections, such as Installing and removing the plug-in and Configuring the plug-in.
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