敗家貓

Setting Duration and Throttling Option

1、copy database in 10 hours with minimum impact RMAN>backup as copy duration 10:00 minimized load database; 2、back up tablespace in 4 hours RMAN>backup duration 4:00 filesperset 1 tablespace users; 3、back up as  many files as possible in 4 hours RMAN>backup duration 4:00 partial filesperset 1 database;

duration <hrs>:<mins> [partial] [minimize {time|load}]
partial:假如在指定時間內沒有完成備份將不會發生錯誤訊習。如沒有指定的話，將會停止rman執行跟顯示錯誤訊習
minimize time:儘可能的在指定的時間內完成備份的動作
minimize load:儘可能的不影響正常的運作之下完成備份的動作

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summary

use the flash recovery area to simplify file managemenet for all recovery-related files apply incremental backups to data file image copies to speed up recovery time iuse the block change tracking file to create faster incremental backups use incremental backups to refresh a clone database use compressed backup sets to save storage space

overview

setting up a flash recvoery area and managing space enabling block change tracking using the Oracle-suggested strategy for backups using optimized incremental backups recovering with incrementally updated backups performing RMAN channel failover