The Oracle VM Server for SPARC software does not impose a memory size limitation when you create a domain. The memory size requirement is a characteristic of the guest operating system. Some Oracle VM Server for SPARC functionality might not work if the amount of memory present is smaller than the recommended size. For recommended and minimum memory requirements for the Oracle Solaris 10 OS, see System Requirements and Recommendations in Oracle Solaris 10 1/13 Installation Guide: Planning for Installation and Upgrade. For recommended and minimum memory requirements for the Oracle Solaris 11 OS, see Oracle Solaris 11 Release Notes, Oracle Solaris 11.1 Release Notes, Oracle Solaris 11.2 Release Notes, and Oracle Solaris 11.3 Release Notes.
The OpenBoot PROM has a minimum size restriction for a domain. Currently, that restriction is 12 Mbytes. If you have a domain smaller than that size, the Logical Domains Manager will automatically boost the size of the domain to 12 Mbytes. The minimum size restriction for a Fujitsu M10 server is 256 Mbytes. Refer to the release notes for your system firmware for information about memory size requirements.
The memory dynamic reconfiguration (DR) feature enforces 256-Mbyte alignment on the address and size of the memory involved in a given operation. See Memory Alignment.