online backup in oracle - An Overview
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As described in "Backup Retention Policies", the backup retention policy specifies which backups have to be retained to fulfill your data recovery prerequisites. This policy may be according to a recovery window or redundancy. Use the CONFIGURE RETENTION Plan command to specify the retention coverage.
Desk five-three lists the initialization parameters you should set to allow the quick recovery area. This part explains the best way to specify a location with the Restoration location and established its Preliminary dimensions.
Some media professionals could have limitations on the most dimensions of files which they can again up or restore. You must make sure RMAN does not develop backup sets larger than These limits.
If you employ CONFIGURE CHANNEL to specify generic channel settings for a tool, any prior options are discarded, even though the settings are usually not in conflict.
Right after tests a channel allocation on the media supervisor, generate and restore a take a look at backup. For instance, You can utilize the command in Illustration five-seven (substituting the channel settings demanded by your media management seller) to check regardless of whether a backup might be established to the media supervisor.
If the database can't Identify a media administration library in the location specified from the SBT_LIBRARY parameter or perhaps the default locale, then RMAN troubles an ORA-27211 mistake and exits.
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Supporting documentation treats Innovative matters. On the whole, the 2 Day + guides refer you to these subject areas when wanted.
RMAN can generate backup sets utilizing binary compression. It is possible to configure RMAN to use compressed backup sets by default on a device type by specifying the COMPRESSED choice inside the BACKUP Kind TO .
When you are utilizing a quick Restoration area, then you should not operate your databases Using the retention coverage disabled. If files are by no means deemed see here now out of date, then a file can only be deleted from your speedy recovery area if it has been backed up to Several other disk location or to some tertiary storage device for instance tape.
Soon after putting in the media management software program, perform what ever configuration that your vendor needs so that the program can settle for RMAN backups. Based on the sort of media administration application that you simply mounted, you may have to determine media swimming pools, configure consumers and classes, and so forth.
You should utilize RMAN to make click a persistent configuration that governs when archived redo logs are suitable for deletion from disk.
If you don't use Oracle Secure Backup, You'll be able to use a 3rd-get together media manager. This portion describes the generic techniques for configuring RMAN for use with a third-occasion media manager.