As mentioned earlier, Oracle's Real Application Cluster (RAC) 10g is fully supported and certified on Sun's Logical Domains (LDOMs) feature. This feature, which allows and controls the dynamic allocation of systems resources, is available on Sun's CoolThreads Servers running Solaris. This line of products is commonly known as "CMT" (Chip Multi-Thread) and provide up to 256 threads per system.
A comprehensive Sun BluePrint™, "Running Oracle Real Application Clusters (RAC) on Sun Logical Domains)", has just been released that describes (in 40 page detail) how to understand, install, and deploy the Oracle RAC software into the Solaris LDOMs environment. This is divided into four parts:
- An introduction which provides background information on RAC & LDOMs and discusses the various options
- Requirements in getting the correct software and hardware environment
- Actual install & configuration of the software including how to handle network and storage considerations.
- Finally, an additional section which discusses RAC performance in this environment and goes over known issues.
The blueprint was a joint cooperation between Oracle and Sun and was written by Daniel Dibbets (Oracle), Alexandre Chartre (Sun), and Roman Ivanov (Sun, ISV Engineering).
