Patent ID: 7657715

Claim:
A computer readable medium tangibly embodying a program of machine-readable instructions executable by a processor to perform operations for a host controlling a dynamic transition of the host from a current operation mode to a target operation mode, the operations comprising: the host receiving an operation mode transition request to transition a logical representation of a storage subsystem as maintained by the host from the current operation mode to the target operation mode; and the host reconfiguring the logical representation of the storage subsystem to the target operation mode based on the operation mode transition request exclusive of a reloading of initial programs by an operating system of the host, wherein the host reconfiguring the logical representation of the storage subsystem to the target operation mode based on the operation mode transition request includes: the host quiescing each active alias I/O operation; and wherein the operations further comprise: the host restarting each quiesced alias I/O operation subsequent to a completion of a reconfiguration of the logical representation of the storage subsystem to the target operation mode.