Hard disk drive with support for atomic transactions

Details Hard disk drive with support for atomic transactions Hard disk drive with support for atomic transactions

2007-12-18

2007-12-18

Kim, Matthew (Department: 2186)

Electrical computers and digital processing systems: memory

Storage accessing and control

Control technique

C711S112000

Reexamination Certificate

active

10976650

ABSTRACT:
Embodiments of the present invention provide a data storage apparatus with new features to more easily enable atomic transactions. Rather than having the host system issue the multiple logging commands to the data storage apparatus, the data storage apparatus can be modified so that it can perform the logging function itself. In one embodiment, a data storage controller of a data storage apparatus for implementing an atomic transaction comprises a receiving module configured to receive from a host one or more commands to be executed as an atomic transaction; a log recording module, configured to record in a nonvolatile storage a log containing the one or more commands of the atomic transaction, the log to be administered by the data storage controller and not by the host; and an execution module configured to perform the one or more commands of the atomic transaction.

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patent: 2004/0128470 (2004-07-01), Hetzler et al.

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