Posted by martijnl on February 12, 2008
Just like IBM for Websphere licensing there are all sorts of issues with licensing Oracle when used in a virtualized environment. Because the advantages of virtualizing Oracle outnumber the disadvantages in my experience so far it is highly recommended to specifically address the licensing consequences and the possible influence that this has on the final design. This prevents any nasty surprises afterwards when you get an Oracle licensing audit.
- Oracle categorizes x86 virtualization solutions as “software partitioning”
- If you use a cluster of virtualization hosts the term “box” as mentioned in the quote applies to the entire cluster of hosts
- With VMotion, DRS and HA you need to license all the servers that the virtual machine could end up on (this may or may not include passive HA nodes, I do not know that at this time)
- Oracle does not recognize locking a virtual machine to a host through the virtualization software with the goal to license only that cluster host. This also defeats much of the advantages of virtualizing the Oracle servers anyway.
- Make a separate cluster for Oracle VM’s. You can add other vM’s ofcourse but you need to ensure Oracle VM’s do not go outside of that dedicated cluster
- Plan failover capacity for both clusters (this could mean more capacity than necessary if you place all the hosts in the same cluster so calculate VMWare licenses and hardware accordingly).