RE: Auto Extend On, Increment By

  • From: "Allen, Brandon" <Brandon.Allen@xxxxxxxxxxx>
  • To: <Smith.Steven@xxxxxxx>, <Oracle-L@xxxxxxxxxxxxx>
  • Date: Fri, 16 Mar 2007 08:44:23 -0700

This is what I do:

*       
        Autoextend on
*       
        Next size should be something moderate to prevent frequent space
allocation penalties, but not too large to the point where it would
cause a very significant space allocation penalty (e.g. 1+ minutes) for
the unfortunate user that adds a row and requires another extent.  I
usually go with something around 64MB, but it's all relative and there
is obviously no "right" answer to this one
*       
        Maxsize should pretty much always be set with autoextend to
prevent the tablespaces from growing out of control and filling up the
filesystem
*       
        Monitoring should still be in place - autoextend should not be a
replacement for monitoring, it should just be used to prevent the
mundane maintenance of adding space to tablespaces and getting calls in
the middle of the night when some rare event occurs that requires more
space than your normal growth trend predicted.

Regards,
Brandon

 

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