Configuring the RMAN Environment Advanced Topics. This chapter describes how to perform setup and configuration tasks. This chapter contains these topics Configuring the Flash Recovery Area Advanced Topics. How To Remove Approved Updates From Wsus here. To take maximum advantage of the flash recovery area, it should be used to store and manage as many different types of file as possible online redo logs, archived redo logs, control files and RMANs own working files for backup and restore operations. This section contains the following topics Configuring Online Redo Log Creation in the Flash Recovery Area. The following statements can create online redo logs in the flash recovery area CREATE DATABASEALTER DATABASE ADD LOGFILEALTER DATABASE ADD STANDBY LOGFILEALTER DATABASE OPEN RESETLOGSThe default size of an online log created in the flash recovery area is 1. MB. The log member filenames are automatically generated by the database. The initialization parameters that determine where online redo log files are created are DBCREATEONLINELOGDESTn, DBRECOVERYFILEDEST and DBCREATEFILEDEST. Details of the effect of various combinations of these parameters on online redo log creation can be found in. Oracle Database SQL Reference in the description of the LOGFILE clause of the CREATEDATABASE statement. Configuring Control File Creation in the Flash Recovery Area. The initialization parameters CONTROLFILES, DBCREATEONLINELOGDESTn, DBRECOVERYFILEDEST, and DBCREATEFILEDEST all interact to determine the location where the database control files are created. For a full description of how these parameters interact, see the Semantics section of the description of CREATE CONTROLFILE in Oracle Database SQL Reference. If the database creates an Oracle managed control file, and if the database uses a server parameter file, then the database sets the CONTROLFILES initialization parameter in the server parameter file. If the database uses a client side initialization parameter file, then you must set the CONTROLFILES initialization parameter manually in the initialization parameter file. Archived Redo Log Creation in the Flash Recovery Area. It is recommended that you the use flash recovery area as an archived log location because the archived logs are automatically managed by the database. Whatever archiving scheme you choose, it is always advisable to create multiple copies of archived logs. Stellar-Phoenix-Photo-Recovery-win-9.jpg' alt='Alter System Db Recovery File Dest Size' title='Alter System Db Recovery File Dest Size' />Note It is recommended to perform a backup of the database after a shutdown normal or immediate prior to changing the archive status of a database. Oracle 11g dba interview questions and answers for both freshers and experienced DBMS Introduction, ORACLE ARCHITECTURE, ORACLE Installation, Oracle Environment. DB Oracle DBA. Install the Linux Operating System This section provides a summary of the screens used to install the Linux operating system. As already mentioned, this article. Fast-MS-Access-Recovery-Tool.png' alt='Alter System Db Recovery File Dest Size' title='Alter System Db Recovery File Dest Size' />You have the following basic options, listed from most to least recommended Enable archiving to the flash recovery area only and use disk mirroring to create the redundancy needed to protect the archived redo logs. Enable archiving to the flash recovery area and set other LOGARCHIVEDESTn initialization parameter to locations outside the flash recovery area. Set LOGARCHIVEDESTn initialization parameters to archive only to non flash recovery area locations. If you want to use the flash recovery area, you cannot use the LOGARCHIVEDEST and LOGARCHIVEDUPLEXDEST initialization parameters. You must use instead the LOGARCHIVEDESTn parameters, which have somewhat different semantics. Once your database is using LOGARCHIVEDESTn, you can configure a flash recovery area. Rules for Initialization Parameters Affecting Redo Log File Destinations. The interactions among different initialization parameters affecting redo log archiving distinctions are as follows If LOGARCHIVEDEST and, optionally, LOGARCHIVEDUPLEXDEST is set, these parameters will specify the only redo log archiving destinations. If DBRECOVERYFILEDEST is specified that is, if a flash recovery area is configured and no LOGARCHIVEDESTn is specified, then LOGARCHIVEDEST1. You can override this behavior by explicitly setting LOGARCHIVEDEST1. If you set any local destinations for LOGARCHIVEDESTn, then archived redo logs are stored only in the destinations you specify using those parameters. In this case, redo log files are not archived in the flash recovery area by default. If you have a flash recovery area configured, you can explicitly add the flash recovery area to the set of archiving destinations by setting one of the LOGARCHIVEDESTn parameters to LOCATIONUSEDBRECOVERYFILEDEST note that this does not have to be LOGARCHIVEDEST1. Total Annihilation there. If you do not set any value for LOGARCHIVEDEST, LOGARCHIVEDESTn, or DBRECOVERYFILEDEST, then the redo logs are archived to a default location that is platform specific. On Solaris, for example, the default is dbs. Filenames for Archived Redo Log Files in the Flash Recovery Area. The generated filenames for the archived redo logs in the flash recovery area are Oracle Managed Filenames and are not determined by LOGARCHIVEFORMAT. RMAN File Creation in the Flash Recovery Area. This section describes RMAN commands or implicit actions such as control file autobackup that can create files in the flash recovery area, and how to control whether a specific command creates files there or in some other destination. The assumption in all cases is that a flash recovery area has already been configured for your database. The commands are BACKUPDo not specify a FORMAT option to the BACKUP command, and do not configure a FORMAT option for disk backups. In such a case, RMAN creates backup pieces and image copies in the flash recovery area, with names in Oracle Managed Files name format. Control File Autobackup. RMAN can create control file autobackups in the flash recovery area. Use the RMAN command CONFIGURE CONTROLFILE AUTOBACKUP FORMAT FOR DEVICE TYPE DISK CLEAR to clear any configured format option for the control file autobackup location on disk. Control file autobackups will be placed in the flash recovery area when no other destination is configured. RESTORE ARCHIVELOGExplicitly or implicitly as in the case of, set one of the LOGARCHIVEDESTn parameters to LOCATIONUSEDBRECOVERYFILEDEST. If you do not specify SET ARCHIVELOG DESTINATION to override this behavior, then restored archived redo log files will be stored in the flash recovery area. RECOVER DATABASE or TABLESPACE, BLOCKRECOVER, and FLASHBACK DATABASEThese commands restore archived redo logs from backup for use during media recovery, as required by the command. RMAN restores any redo log files needed during these operations to the flash recovery area, and delete them once they are applied during media recovery. To direct the restored archived redo logs to the flash recovery area, set one of the LOGARCHIVEDESTn parameters to LOCATIONUSEDBRECOVERYFILEDEST, and make sure you are not using SET ARCHIVELOG DESTINATION to direct restored archived logs to some other destination. Configuring RMAN to Make Backups to a Media Manager. On most platforms, to back up to and restore from sequential media such as tape you must integrate a media manager with your Oracle database. A media manager is not an Oracle product and must be obtained from a third party vendor. Psycho Killer - Fa Fa Fa Fa Mp3. If you choose to use RMAN with a media manager, then you must obtain all product specific information from the vendor. This section describes the generic steps for configuring RMAN for use with a media manager. The actual steps depend on the media management product that you install and the platform on which you are running the database. Read the following sections in order when configuring the media manager Prerequisites for Using a Media Manager with RMANBefore you can begin using RMAN with a media manager, you must install it and make sure that RMAN can communicate with it.