PowerProtect Data Manager 19.16 Oracle RMAN User Guide

Performing centralized Oracle restore of archive logs

You can use the PowerProtect Data Manager UI to perform a centralized restore of an Oracle archive logs backup without the control file. The archive logs restore is performed for an asset, based on the Application Direct or Oracle Incremental Merge backup technology used for the last backup.

1. In the PowerProtect Data Manager UI, select Restore > Assets and select the Oracle tab.

   The Restore window displays all the databases that are available for restore.

   To filter the displayed list of assets if needed, you can click in the column heading Name, Status, Protection Policy, Host/Cluster/Group Name, Host Type, Data Guard Name, Data Guard Role, Application Name, Last Copy, Network, Protocol, or Backup Technology:

   • The Name and Application Name columns list the Oracle database asset names.
   • The Status column lists the status as Available, Deleted, or Not Detected.
   • The Protection Policy column lists the names of the protection policies for the assets.
   • The Host/Cluster/Group Name column lists the hostnames.
   • The Host Type column lists the host types as RAC, Standalone, or Active Passive RAC.
   • The Data Guard Name column lists the names of associated Data Guard groups.
   • The Data Guard Role column lists the Data Guard roles as Logical Standby, Physical Standby, Primary, Snapshot Standby, or Generic.
   • The Last Copy column lists the dates and times of the backup copies within the specified date and time range.
   • The Network column lists the networks that are available under the selected host or cluster.
   • The Protocol column lists the protocol as BOOSTFS or NFS when a protocol has been set.
   • The Backup Technology column lists the backup technology as Application Direct or Oracle Incremental Merge.

   NOTE:The listed assets are the assets that have at least one copy discovered by PowerProtect Data Manager. You can select only one asset for one Oracle host.
2. Select the checkbox next to the Oracle Server database asset for restore, and click Restore.
   The restore wizard opens the Oracle Restore and Recovery window.
3. On the Scope page, select Online database recovery, then select Archive log only restore, and then click Next.
   This option restores only the archive logs without the control file. The database can be in either the mount state or open state.
4. On the Storage Unit Selection page, type the name of the storage unit that contains the backup in the Storage unit field, or select the storage unit from the menu, and then click Next.
5. On the Location page, select the preferred type of restore, and then click Next:

   • Restore to original host—Specifies to restore to the original host with the displayed hostname.

     If the original host is part of a RAC cluster, select the available node hostname from the list.

   • Restore to alternate host—Specifies to restore to an alternate host.

     Select the alternate hostname from the list, and then select the required instance name.

     NOTE:For an Oracle Incremental Merge restore, Oracle RMAN agent version 19.13 or later is required on the alternate host.
6. On the Credentials page, select one of the following options, and then click Next:

   • Use the credentials set at asset level or policy level for restore

     NOTE:Credentials at the asset level take precedence over credentials at the protection policy level.

   • Select existing credentials or create new credentials for restore

     Click Set Credentials, complete the fields in the Set Credential dialog, and then click Save.

     NOTE:When you set the credentials for an Oracle database restore, specify the Oracle service that is configured only on the target restore host. The database user must be created by using a local password file on the target host.
7. On the Archive Log Options page, select the required options, and then click Next:

   • Restore To—Select one of the following options:

     • All—Specifies to restore all the archive logs of the database asset.
     • System Change Number—Specifies to restore the archive logs for the SCN range. Type the SCN start and end values in the text boxes.
     • Timestamp—Specifies to restore the archive logs for the timestamp range. Type or select the timestamp start and end values in the text boxes.
     • Log Sequence—Specifies to restore the archive logs for the log sequence range. Type the log sequence start and end values in the text boxes.
       NOTE: A log sequence range is used to recover a specific set of data from a database. The required range must be obtained from a DBA.

   • Database Options—Select either or both of the following options:

     • Crosscheck backups—Specifies to crosscheck the backup before performing the restore. This option applies only when the application agent version 19.13 or later is installed on the target host. Selecting this option causes a delay in the display of progress updates for the restore job. Additional time is needed to crosscheck the backups from the Oracle RMAN catalog.
     • Dry run—Select this option if you do not want to run an actual restore and recovery. This option enables a job that creates the required RMAN restore scripts in the $RMAN_AGENT_HOME/tmp directory on the selected target host. The dry run procedure does not perform a restore or recovery. You can use the scripts that the dry run creates to perform a self-service restore as required.
8. On the More Options page, specify the required options, and then click Next:
   • Set Stream Count—Type an integer stream count in the text box, if required. The default stream count is 4. The maximum stream count is 255.
   • Compressed Restore—To enable restore compression and reduce the impact on the network bandwidth, select Use PowerProtect DD Boost compressed restore.
   • Troubleshooting mode—To enable troubleshooting logging, click the toggle button to change the setting to Enabled. Then the Log level option field appears.
   • Log level—If you enabled troubleshooting mode, select the preferred debug log level:
     • Info—Includes information such as status changes. This is the default log level for scheduled backups and restores.
     • Debug—Additional information that helps with problem diagnosis.
     • Trace—The most detailed amount of information for complex problem diagnosis.
9. On the Summary page:
   1. To ensure that the restore settings are correct, review the information about the Scope, Storage unit, Location, Credentials, Archive Log Options, and More Options.
      To change any settings, you can click Edit beside an information section. As an alternative, you can click Back to access a specific page and change the settings as needed.
   2. To start the centralized restore operation for the Oracle database, click Restore.
      A status message appears with a link to the Protection Jobs page where you can monitor the restore job.