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Oracle Clustered File System (OCFS)Calculate how long ASM rebalance operations will take © 2008 Julian Dyke Fixed Area Variable Area ASM Cache Oracle 11.1 Fixed Area
StreamsSOURCE and TARGET Oracle recommends setting this parameter to TRUE Installed SCOTT/TIGER schema SOURCE = (DESCRIPTION = (CONNECT_DATA = (CONNECT_DATA = Create STREAMS
Slide 11 Index Internals Julian Dyke Independent Consultant Web Version juliandyke.com © 2005 Julian Dyke Slide 2 juliandyke.com 2 Agenda 1.Introduction 2.Block Structure…
Slide 11 © 2013 Julian Dyke juliandyke.com Understanding GoldenGate Julian Dyke Independent Consultant Web Version Slide 2 © 2013 Julian Dyke juliandyke.com Agenda Introduction…
Slide 11 IOT Internals Julian Dyke Independent Consultant Web Version juliandyke.com © 2005 Julian Dyke Slide 2 juliandyke.com © 2005 Julian Dyke 2 Agenda Heap Organized…
Slide 1 1 Julian Dyke Independent Consultant © 2005 Julian Dyke SGA Internals Web Version juliandyke.com Slide 2 © 2005 Julian Dyke juliandyke.com 2 Agenda Introduction…
Slide 1 1 Forgotten Features Julian Dyke Independent Consultant Web Version juliandyke.com © 2005 Julian Dyke Slide 2 juliandyke.com 2 Agenda Introduction Forgotten…
Oracle Clustered File System (OCFS)Consider generating manual statistics for: Very large objects Use DBMS_STATS parallelism In complex databases do not rely on Auto job Unpredictable
Forgotten Features© 2007 Julian Dyke System Change Number In RAC clusters SCN must be maintained across all nodes in cluster SCN propagation scheme differs according
Slide 1 juliandyke.com 1 © 2012 - Julian Dyke Julian Dyke Independent Consultant Is RAT Worth Catching? Slide 2 juliandyke.com 2 © 2012 - Julian Dyke Introduction Real…
Reducing RedoContains full details of all races from 1961 to 2004 Updated annually in November (end of season) Currently juliandyke.net Each season has up to 18 races (19
Transaction InternalsSCORE The table has no indexes The following table has been used in all examples in this presentation TEAM VARCHAR2(30) RUNS NUMBER WICKETS NUMBER juliandyke.com
Slide 1 1 Julian Dyke Independent Consultant Oracle Diagnostics Web Version juliandyke.com © 2005 Julian Dyke Slide 2 juliandyke.com © 2005 Julian Dyke 2 Warning Much…
Slide 1 1 © 2006 Julian Dyke Inside RAC Julian Dyke Independent Consultant Web Version juliandyke.com Slide 2 © 2006 Julian Dyke juliandyke.com 2 Agenda Introduction…
Slide 11 Redo Internals Julian Dyke Independent Consultant Web Version © 2005 Julian Dyke juliandyke.com Slide 2 © 2005 Julian Dyke juliandyke.com 2 Agenda 1.What is Redo?…
Logical I/OBuffers are cached in shared memory Most logical I/Os can be satisfied from cache The remainder will result in physical I/Os Logical I/Os include Can be used to
Slide 1 1 juliandyke.com © 2005 Julian Dyke Data Segment Compression Julian Dyke Independent Consultant Web Version Slide 2 juliandyke.com © 2005 Julian Dyke 2 Agenda 1.Introduction…
Slide 11 juliandyke.com Bitmap Index Internals Julian Dyke Independent Consultant Web Version © 2005 Julian Dyke Slide 2 juliandyke.com 2 Agenda Introduction Bitmap…
Slide 1 1 © 2008 Julian Dyke LOB Internals Julian Dyke Independent Consultant juliandyke.com Web Version - December 2008 Slide 2 © 2008 Julian Dyke juliandyke.com 2 Objectives…
Slide 1 1 RAC Basics Julian Dyke Independent Consultant Web Version - February 2008 juliandyke.com © 2008 Julian Dyke Slide 2 juliandyke.com © 2008 Julian Dyke 2 Agenda…