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Oracle Metric db file parallel write

Oracle Tips by Burleson Consulting

 

The db file parallel write Oracle metric occurs when the process, typically DBWR, has issued multiple I/O requests in parallel to write dirty blocks from the buffer cache to disk, and is waiting for all requests to complete.

The popular Ion tool is the easiest way to analyze Oracle cache and disk performance (db block parallel writes), and Ion allows you to spot hidden disk I/O performance trends.  Ion is our favorite Oracle tuning tool, and the only 3rd party tool that we use.  This, and many other Oracle performance metrics are discussed in my book "Oracle Tuning" by Rampant TechPress.  You can buy it directly from the publisher and save 30% at this link:

http://www.rampant-books.com/book_1002_oracle_tuning_definitive_reference_2nd_ed.htm


 

 

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