CMOD on RHEL - Performance on virtual environment

[ocruz]

Hello ODUG members!

I want to know if someone has experience or has been done a comparision between a physical environment and a virtual environment running a standard CMOD installation with Library Server (Oracle) and Object Server (only cache) in the same server.

Thanks in advance.

Oscar Cruz

[Justin Derrick]

You'll really just have to do benchmarks of your own to determine if running in a VM meets your performance requirements.

Where possible, I try NOT to run under a VM, because I find that it complicates troubleshooting.  For example, if your CMOD server is slow, but everything looks fine -- where is the problem?  Is it another VM on the same system that's using up too many resources?  There's also a strong motivation to over-commit hardware -- i.e., too many VMs on a single server for all of them to be busy at the same time, and still keep acceptable performance.

It really depends on how important CMOD is to your company.  If it's an archive where data goes to die, maybe reliability isn't so important.  If it's serving your customers, you may want to invest in performance and reliability improvements.  It's a very difficult question to answer!

-JD.