Partitionin or not partition?

Hi dba's,
I have the following questions about partitioning. Whe have a 20 million row's table (about 2G) and we are thinking if it's worth tho partition it. The table doesn't contain historical data , the data are inserted or deleted
(very few updates) (about 200000 insert/deletes per day) and is refreshed
every night toward several (8) snapshot databases. One of the candidate field for the partition should be a field that contains a regional code
(but in this case the partitions should be of very different sizes).
On the snapshot databases the table is spread across several drives (raid 0+1) and the partition
would go all on the same mount point, do you think the partition would increase the performances?
Do you have any advices, hints for me?
Thanks to all
Francesco

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Author: Cantisano Francesco - Matrix
  INET: francesco.cantisano_at_matrix.it

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