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|Oracle VM Server for SPARC 2.1 Administration Guide Oracle VM Server for SPARC|
Starting with the Oracle VM Server for SPARC 2.0 release, the resource allocation mechanism uses resource allocation constraints and hints to assign resources to a domain at bind time.
A resource allocation constraint is a hard requirement that the system must meet when you assign a resource to a domain. If the constraint cannot be met, both the resource allocation and the binding of the domain fail.
A resource allocation hint is a soft requirement that the system attempts to meet when you assign a resource to a domain. The allocation of a resource can still succeed, and the domain can be bound even if the hint cannot be fully met. This situation can happen if the system can assign the resource in a way that does not necessarily meet the requirement.