Logical Domains software does not impose a memory size limitation when creating a domain. The memory size requirement is a characteristic of the guest operating system. Some Logical Domains functionality might not work if the amount of memory present is less than the recommended size. For recommended and minimum size memory requirements, see the installation guide for the operating system you are using.
OpenSolaris 2009.06 OS. See “System Requirements” in Getting Started With OpenSolaris 2009.06.
The OpenBootTM PROM has a minimum size restriction for a domain. Currently, that restriction is 12 Mbytes. If you have a domain less than that size, the Logical Domains Manager will automatically boost the size of the domain to 12 Mbytes. Refer to the release notes for your system firmware for information about memory size requirements.