January 2012
Intermediate to advanced
542 pages
11h 28m
English
Content preview from Oracle Database 11gR2 Performance Tuning CookbookBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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V$INSTANCE_RECOVERY
This view monitors the mechanisms available to the user/DBA to limit the I/O needed for recovery.
Fields
The most relevant view fields are as follows:
RECOVERY_ESTIMATED_IOS: The estimated number of data blocks to process during recoveryESTIMATED_MTTR: The estimated time recovery based on the current system loadTARGET_MTTR: The Mean Time To Recover (MTTR) target value in secondsLOG_FILE_SIZE_REDO_BLKS: The number of redo blocks required to be sure that a log switch won't occur before the checkpoint completesLOG_CHKPT_INTERVAL_REDO_BLKS: The number of redo blocks that will be processed during recovery to satisfy theLOG_CHECKPOINT_INTERVALparameterLOG_CHKPT_TIMEOUT_REDO_BLKS: The number of redo blocks that will be processed ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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