| 摘要 |
A method of managing reservation-control in a storage system that consists of a plurality of interfaces and a common storage resource, the method comprising responsive to receiving at an originator interface a reservation command related to the common storage resource, implementing a multi-phase reservation synchronization protocol including a lock phase consisting of locking the resource on a central controlling process, backing up respective lock phase data on a backup control process, and issuing a lock phase completion indication; an execution phase consisting of executing locally on each one of the plurality of interfaces a reservation operation, and issuing an execute phase completion indication; and an unlock phase consisting of unlocking the resource on the central controlling process; backing up respective unlock phase data on a backup control process, and issuing an unlock phase completion indication.
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