New to oracle, but I'm coming from the sybase side.
I took over one of our oracle production databases (1.5 Tb) while the
regular dba is out. I got errors (unable to extend temp segment) for two
user tablespaces which I took care of by adding a datafile to each. While
reviewing the other tablespaces, I was surprised to see the system
tablespace at 99%. I checked with app folks. No new
objects were added accidentally to it. I panicked and resized the
system tablespace by an additional 33%. Upon review, I forgot to notice
that the system tablespace was set to autoextend. My question is this:
even with the autoextend option set, is there a performance hit or crash
potential by not resizing the system (or any other) tablespace before it
hits 100%? On the sybase side, I take care of the logical devices before
it reaches 85%.
~newbie appreciates any comments
thanks,
gecho