The Oracle VM Server for SPARC 2.0 release introduces memory dynamic reconfiguration (DR). This feature is capacity-based and enables you to add an arbitrary amount of memory to or remove it from an active logical domain.
The requirements and restrictions for using the memory DR feature are as follows:
You can perform memory DR operations on any domain. However, only a single memory DR operation can be in progress on a domain at a given time.
The memory DR feature enforces 256-Mbyte alignment on the address and size of the memory involved in a given operation. See Memory Alignment.
Unaligned memory in the free memory pool cannot be assigned to a domain by using the memory DR feature. See Adding Unaligned Memory.
If the memory of a domain cannot be reconfigured by using a memory DR operation, the domain must be stopped before the memory can be reconfigured. If the domain is the control domain, you must first initiate a delayed reconfiguration.