Dell Avamar for Oracle 19.10 User Guide

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Restore options

Restore plug-in options enable you to control restore functionality that is specific to the Avamar Plug-in for Oracle. You can set restore options from the Restore Command Line Options dialog box.

The following table lists options for restore operations with the Avamar Plug-in for Oracle.

Table 1. Restore plug-in optionsThe following table displays the restore plug-in options.
Option	Description
Oracle Instance Name	Leave this field blank. The Avamar Plug-in for Oracle determines the Oracle instance name when you browse and select a target to restore.
Username	Specifies the username that is used to authenticate the Oracle database. Username and password consist of a connection string to Oracle. The connection string must specify a user that has backup privileges for the database. If left blank, RMAN tries to log in with the same username and password that the Avamar client agent is running under, and attempts to assume SYSDBA (or SYSBACKUP) privileges. Typically, this field should contain the special account name (backupuser), Creating the Oracle user account provides more information.
Password	Specifies the password for the username account.
Media Management Library Bitwidth	Specifies Media Management Library (MML) bitwidth. Choices are: Automatic (default) 32-bit 64-bit If the application bitness and OS bitness are not the same, select the appropriate setting from the Media Management Library Bitwidth list. If the application bitness and OS bitness are the same, leave the Media Management Library Bitwidth set to the Automatic. NOTE:The Media Management Library Bitwidth option is available for Linux and UNIX Oracle RMAN plug-ins. This option does not apply to Windows platforms.
Number of RMAN Channels	Specifies the number of channels to allocate during a backup or restore. The maximum number is 10. The default is 1. This option impacts the number of streams that Data Domain systems use. The formula that determines the number of streams is: NUMBER OF RMAN CHANNELS x NUMBER OF DATA DOMAIN STREAMS. NOTE:The number of Data Domain streams is set when you add a Data Domain system to the Avamar configuration. NOTE:Allocating multiple channels for backups and restores can improve performance. Performance improvements for backups and restores, however, depend on the Oracle server configuration. In some instances, allocating too many channels might lock out processes, which can result in a time-out error. This problem does not occur when using RMAN scripts.
Exit a multiple target restore when any one restore fails	Prevents a multiple target restore from continuing after one of the backups fails.
Enable debugging messages (advanced option)	Writes maximum information to log files. Use with caution.
NLS_DATE_FORMAT (advanced option)	Specifies a valid timestamp format for the target machine. For example: `mm`/`dd`/`yyyy`.
Encryption method from Data Domain system	Specifies the encryption method for data transfer between the Data Domain system and the client during the restore.
Point-in-Time (PIT)	Enables a point-in-time recovery. Do not specify a point-in-time option if you selected multiple databases for the restore. Before using a point-in-time recovery option, ensure that relevant backups are available on the Avamar server. The recovery operation fails if a backup has expired or has been deleted from the Avamar server.
Flashback Database (FRA)	Enables a flashback restore.
Corrupt blocks (advanced option)	Recovers corrupt blocks only, and not the entire database. To use the Corrupt blocks only option, you must set the DB_BLOCK_CHECKSUM initialization parameter to `TYPICAL` for the Oracle database. The database must be in a mounted or open state.
Validate database (advanced option)	Validates the database only if the option is selected during a corrupt blocks recovery
Recovery mode	Lists recovery modes for the Point-in-Time (PIT) and Flashback Database (FRA) recovery types. Select an option from the Recovery mode list. Recovery modes and values provides more information.
Recovery value	Specifies the SCN, log sequence number, or timestamp, depending on which recovery mode is selected.
Open the database with resetlogs after recovery	Select this option to open the database after the recovery. Clear this option to enable a roll-forward operation to recover the database with archive log transactions.
Run user-defined script at beginning of restore (advanced option)	Specifies the name of a script that runs at the beginning of the restore. The preprocessing script must be in the /avamar/etc/scripts directory on the client.
Exit restore if script fails (advanced option)	Stops processing the script when the script returns a non-zero status code.
Run user-defined script at end of restore (advanced option)	Specifies the name of a script that runs at the end of the restore. The postprocessing script must be in the /avamar/etc/scripts directory on the client.
Exit process with script failure exitcode (advanced option)	Exits the script with an exitcode from the script rather than with the standard avoracle exitcode.
Show Advanced Options	Displays advanced options.