A quick note:

Maintaining database server in a VMware environment is crucial. In specific, taking regular backups is really important. Not only it helps in restoring database to a good state in emergency cases, but also it stops oversizing transaction log files. As there would be many transactions in a VMware environment, if you don’t pay attention to transaction log file, you will end up with a huge transaction log file (at least in MS SQL case) or your disk may become full and cause your whole environment to stop functioning. So, it is really important to have a maintenance plan in databases server (MS SQL or Oracle) appropriate for your environment.