You should pay attention to the total usage of the VMWare server.We had troubles with a test system and we found that it was because the other machines in the VMWare were consuming a lot of resources.
The troubles were slow response and many disconnects. Adar Yechiel Rechovot, Israel Blanchard William wrote:
Is anyone running Oracle (10g) on VMWare? Have you had any difficulties? We are considering placing some production systems on VMWare so that we can better control resources consumed by individual applications. We have completed an install and have been monitoring the database to ensure that there aren't any problems with running an "empty" database (backup, memory, etc) as a proof-of-concept for a couple of weeks now so we know that it can be done. William