This is the usual response I give to customer on virtualization queries for OPERA.
Please be aware that Oracle has not certified any of its products on any virtualized environments, be it VMWare, MS HyperV or any other virtualization software. Oracle Support will assist customers running Oracle products on a virtualization software in the following manner:
- Oracle will only provide support for issues that either are known to occur on the native OS, or can be demonstrated not to be as a result of running on the virtualization software.
- If a problem is a known Oracle issue, Oracle support will recommend the appropriate solution on the native OS. If that solution does not work in the virtualized environment, the customer will be referred to virtualization software vendor for support.
- When the customer can demonstrate that the Oracle solution does not work when running on the native OS, Oracle will resume support, including logging a bug with Oracle Development for investigation if required.
- If the problem is determined not to be a known Oracle issue, we will refer the customer to the virtualization software vendor for support.
- When the customer can demonstrate that the issue occurs when running on the native OS, Oracle will resume support, including logging a bug with Oracle Development for investigation if required.
For OPERA, it is recommended the Database servers and DataGuard servers (if applicable) are maintained on a physical server. This is to ensure that we are able to provide relevant and swift support when it is required. Our preference is that even the application servers are in a physical environment.
However, should you go ahead to host the application server or any other required servers in a virtualized environments, please refer to the OPERA Hardware Guide (https://docs.oracle.com/cd/E98457_01/docs/E78130.pdf) and add further to those stated specifications to allow for a buffer for performance in a virtual environment. By this I mean to increase the specifications from what is listed in the document. You should also refer to the sections on virtualization in the document for more information.
For Simphony, please refer to Simphony Server Sizing Guide (https://docs.oracle.com/cd/F10429_01/doc.182/f11957.pdf) for the comments on virtualization.
The above can be referenced in MyOracle Support (MOS) portal https://support.oracle.com/epmos/faces/DocumentDisplay?id=249212.1
For more information and details on qualifying technologies, please click on the link below.
Hope this helps.
I did lots of installations on virtual environments and never had issues.
After all, I have installed a multyproperty of 20 resorts with more than 400 users simultaneously connected (Top connections registered on DB was above 700) and Opera is running smoothly.
There is no difference between virtual and physical server.
Hope this will help you.