An apparatus comprises a data path capable of coupling a physical device to
a plurality of initiators. An interface is coupled to the data path and
forms a command pathway between the plurality of initiators and the
physical device. The controller is coupled to the data path and coupled to
the interface. A controller comprises an executable process that creates a
virtual device object that resolves conflicting concurrent attempts to
access the physical device by a plurality of initiators. The virtual
device object is capable of protecting state of the physical device during
successive data transfer and media movement operations by emulating
responses of the physical device and redirecting access to the physical
device when the physical device becomes available.
_ uno aparato abarcar uno dato trayectoria capaz acoplador uno físico dispositivo uno pluralidad iniciador. _ uno interfaz ser coupled dato trayectoria y forma uno comando camino entre pluralidad iniciador y físico dispositivo. _ regulador ser coupled dato trayectoria y coupled interfaz. _ uno regulador abarcar uno ejecutable proceso que crear uno virtual dispositivo objeto que resolver conflicting concurrente procurar acceso físico dispositivo por uno pluralidad iniciador. _ virtual dispositivo objeto ser capaz protecting estado físico dispositivo durante sucesivo dato transferir y medio movimiento operación por emulating respuesta físico dispositivo y volver a dirigir acceso físico dispositivo cuando físico dispositivo convertir disponible. _
