Logical Domains (LDoms or LDOM) is the server virtualization and partitioning technology from Sun Microsystems for their Solaris operating system when running on SPARC V9. It was released in April 2007. Since Oracle Corporation completed the acquisition of Sun in January 2010, the product has been re-branded as Oracle VM Server for SPARC from version 2.0 onwards.Each domain is a full virtual machine with a reconfigurable subset of hardware resources.