A method and apparatus are provided for implementing distributed (SCSI)
devices using enhanced adapter reservations. A plurality of adapters is
provided. Each adapter implements a plurality of logical devices with
each logical device respectively coupled to a port of the distributed
SCSI devices. The adapters manage reservations for the plurality of
logical devices selectively using a no reservation state, an implicit
reservation state, and an explicit reservation state. The adapters
arbitrarily assign one adapter for managing each of the plurality of
logical devices.