I was emailed from someone on the VMTN board regarding our Oracle environment and ESX. Here is more information about our environment that I had posted in prior topics.

We are running our complete Oracle environments as virtuals ( production and development servers ). Initially we just ran the development environments but about 2 years we made the move for production as well.

Our production environment runs on ESX 2.5
Host is a HP Proliant DL385 Dual Core 2.2Ghz 8GB RAM
internal drives

Production Oracle is :
9.2.0.2 DB ( 60GB database )
11.5.9 ( 350 users - running financials - AP,GL, PO, FA )
O/S Linux Advanced Server 2.1 (2.4.9 kernel )
Guest is is given 3.5GB memory and we running is with 2 virtual processors

Also running 2 production Oracle forms server on same host along with a few additional non-oracle guests

We are running our development and system testing environments currently under GSX.

We have had no issues so far, performancs is fine, works great. With running production as a VM we have been able to benefit from everything VMware has to offer ( complete vmdk backups, hardware independence, easy recovery in case of server failure etc ).

One of the best Vmware features for the development environment is running with snapshots. Big advantage when testing patches or code. In case of issues we can easily revert to the snapshot and start again. Also with everything being virtuals it makes replication of environments and refreshes alot easier then the traditional method.