Re: Index Maintenance for DW environment

  • From: "Dennis Williams" <oracledba.williams@xxxxxxxxx>
  • To: thomasjd@xxxxxxxxxxxxx
  • Date: Fri, 11 Aug 2006 16:36:27 -0500

Jeff,

You may find a presentation by Tim Gorman titled "Scaling to
Infinity" useful:
http://www.tcoug.org/Archive/Fall2004/Fall2004.html

He describes the "virtuous cycle" which centers around best use of
partitioning and the other techniques mentioned by the previous posters such
as Niall. Tom contrasts the virtuous cycle with the "death spiral", which
seems to be what your site is experiencing. This probably won't be any news
to you, but it is often helpful for an outside expert to present the
suggestions in a coherent manner. Basically your system has probably reached
the limits of its scalability. You may make some small changes that will
postpone the inevitable, but the point is that some significant changes must
be made to have a scalable future.

Dennis Williams

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