Transaction support on logical disks
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United States of America Patent
Stats
-
Dec 23, 2003
Grant Date -
N/A
app pub date -
Aug 30, 2000
filing date -
Jan 18, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Apparatus for performing a data transaction, including at least one storage device which is adapted to receive data as a succession of data blocks for storage at respective physical locations therein and control circuitry. The control circuitry is configured to convey the succession of data blocks to the at least one storage device while writing to the at least one storage device, together with at least some of the data blocks, parameters indicative of the identity of the data transaction, the identity of the recorder of the transaction state, and a location of a subsequent data block in the succession. The control circuitry is also configured to transform a state of the data so as to complete (commit or abort) the data transaction using some of the indicative parameters. In the event of a failure of the apparatus before a transaction is completed, i.e., committed or aborted, the apparatus facilitates complete recovery using data stored in the data blocks.
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