Patent ID: 8700846

Claim:
A storage system, comprising: at least one host; at least one volume, wherein the at least one volume is accessible to the at least one host via a storage area network (SAN); and a plurality of mapping configuration components stored inside the storage system, wherein each of the plurality of mapping configuration components comprises at least host information, wherein each of the plurality of mapping configuration components is configured to be in an active, inactive, invalid, or deleted state, wherein each of the plurality of mapping configuration components represents a set of host-to-volume mappings between the at least one host and the at least one volume, wherein each of the plurality of mapping configurations further represents an application cluster, where hosts of the application cluster can access a corresponding logical partition when the respective mapping configuration is in the active state; wherein only one of the plurality of mapping configuration components is in the active state at a time, and a current host-to-volume mapping between the at least one host and the at least one volume of the storage system is set based on the mapping configuration component in the active state; and wherein the storage system is operable to change a mapping configuration component of the plurality of mapping configuration components to be in the invalid state based on a volume mapped by the mapping configuration component being deleted.