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AssigneeInternational Business Machines Corporation
InventorsGordon D. Hutchison, Cameron J. McAllister, Lucy A. Harris, Bruce J. Smith
Estimating the term…
A method of performing a data write on a storage device comprises instructing a device driver for the device to perform a write to the storage device, registering the device driver as a transaction participant with a transaction co-ordinator, executing a flashcopy of the storage device, performing the write on the storage device, and performing a two-phase commit between device driver and transaction co-ordinator. Preferably, the method comprises receiving an instruction to perform a rollback, and reversing the data write according to the flashcopy. In a further refinement, a method of scheduling a flashcopy of a storage device comprises receiving an instruction to perform a flashcopy, ascertaining the current transaction in relation to the device, registering the device driver for the device as a transaction participant in the current transaction with a transaction co-ordinator, receiving a transaction complete indication from the co-ordinator, and executing the flashcopy for the device.
A method of performing a data write on a storage device comprising:
A system for performing a data write on a storage device comprising:
A method of scheduling a flashcopy of a storage device comprising:
A system for scheduling a flashcopy of a storage device comprising:
(canceled)
A computer program product on a computer readable medium for operating a device driver for a storage device, the product comprising computer program code to, when loaded into a computer system and executed thereon, cause said computer system to perform:
Dependencies are inferred from the claim text.