Patent
1995-01-23
1996-12-31
Beausoliel, Jr., Robert W.
G06F 1134
Patent
active
055902740
ABSTRACT:
A fault tolerant computer system distributes audit trail files containing audit records, across an arbitrary number of disk volumes. After one audit trail file becomes full, audit records are directed toward a next audit trail file stored on a different disk volume. Storage of newly generated audit rotates through the disk volumes in round-robin fashion. Full audit trail files are eventually archived and their space becomes available again for renaming and storage of newly generated audit records. The number of audit records available for on-line recovery after a failure is not limited to the storage capacity of any single disk volume. Furthermore, there is no contention for disk access between archiving of full audit trail files and storage of newly generated audit records.
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"Audit trail compaction for database recovery" Kaunitz et al Jul. 1984, vol. 27, No. 7.
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Carley William J.
Lyon James M.
McCline Matthew C.
Skarpelos Michael J.
van der Linden Robbert
Beausoliel, Jr. Robert W.
Chung Phung My
Tandem Computers Incorporated
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