Oracle
recommends that your database block size match or be in multiples of your
Operating System block size
One can use smaller block sizes, but the performance
cost is significant.
Your choice should depend on the type of application you
are running. If you have many small transactions as with OLTP, use a smaller
block size with fewer, but larger transactions as with a DSS application use a
larger block size.
If
you are using a Volume Manager, consider your "Operating System block
size" to be 8K, this is because Volume Manager products use 8K blocks (and
this is not configurable)
