Dynamic magnetic information storage or retrieval – General processing of a digital signal – Data in specific format
Reexamination Certificate
2005-03-08
2005-03-08
Tran, Sinh (Department: 2651)
Dynamic magnetic information storage or retrieval
General processing of a digital signal
Data in specific format
C710S006000
Reexamination Certificate
active
06865043
ABSTRACT:
Special fields for error recovery are provided in data set information tables of data sets written with synchronized transactions. If a transaction only partially fills a data set, that data set is rewritten in a succeeding data set, appending the next transaction. A moving access point in the table identifies the appended transaction, allowing the rewritten transaction to be skipped during read recovery. The table provides recovery trails by providing a thread to tie the data sets together, the status of the data set, and pointers, such as identifying the wrap of the immediately succeeding data set.
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Ataku Toshimi
Greco Paul Merrill
Itagaki Hiroshi
Jaquette Glen Alan
Nagura Hironobu
Davidson Dan I
Holcombe John H.
International Business Machines - Corporation
Tran Sinh
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