About Restoring and Recovering a Database in ARCHIVELOG Mode

You can select the components listed in Components Usable in a Restore Operation in a restore and recovery operation.

The table describes the validations that Oracle VSS writer performs for the components during the pre-restore phase, and the actions that it performs after the restore completes.

Table 9-3 Components Usable in a Restore Operation

Component	Pre-Restore Phase	PostRestore Phase	Section
Server Parameter File	Verifies that the database instance is not started. Otherwise, the writer returns a pre-restore failure.	Ensures that the database is started `NOMOUNT`. If the server parameter file is restored to the default location for the Oracle home, then the instance starts `NOMOUNT` automatically. Otherwise, you must set `ORA_SID_PFILE` to the location of the text-based initialization parameter file that points to the location of the server parameter file.	"Restoring the Server Parameter File "
Control File	Verifies that the instance is either started `NOMOUNT` or not started. If the instance is not started, the writer either starts the instance with the `ORA_SID_PFILE` instance parameter file, or uses the initialization parameter file or server parameter file in the default location.	Mounts control file after replicating control file to all the current control file locations pointed to by the instance.	"Recovering from the Loss of All Control Files"
Tablespace or data file component	Verifies that the database must be mounted or the specified data files or tablespaces must be offline.	Performs complete recovery of these tablespaces or data files. The requester application can override the default recovery behavior.	"Recovering Tablespaces or Data Files"
All Tablespaces	Verifies that the database is mounted.	Extracts redo from the backup writer metadata document and performs incomplete recovery on all the restored data files up to the time of snapshot creation. The requester application can override the default recovery behavior.	"Recovering All Tablespaces"
Oracle Database	Verifies that the instance is not started.	Starts the database instance, mounts the control file, and performs recovery. See the descriptions of postrestore behavior for Server Parameter File, Control File, and All Tablespaces.	"Performing Disaster Recovery" and "Restoring Component-Based Backups of a NOARCHIVELOG Database"
Archived redo log or fast recovery area	None.	Does not perform default recovery of this component. Nevertheless, the requester application can run required RMAN commands.

Restoring the Server Parameter File
Use this procedure to restore the server parameter file.
Recovering from the Loss of All Control Files
This procedure explains how to recover from the loss of all multiplexed control files.
Recovering Tablespaces or Data Files
This procedure explains how to recover from the loss of one or more tablespaces or data files. This procedure assumes that not all data files are lost.
Recovering All Tablespaces
This procedure explains how to recover from the loss of all tablespaces.
Performing Disaster Recovery
This procedure explains how to recover from the loss of the server parameter file, control file, and all data files.

Parent topic: About Restoring and Recovering a Database