Logging process in a data storage system
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United States of America Patent
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Jan 8, 2019
Grant Date -
Jun 9, 2016
app pub date -
Jul 7, 2014
filing date -
Aug 2, 2013
priority date (Note) -
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status (Latency Note)
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Abstract
A logging process in a data storage system having a set of storage tiers, each storage tier of the set of storage tiers having different performance characteristics, wherein the set of storage tiers is divided into a plurality of subsets of storage tiers using the performance characteristics, may include initiating the logging process for creating a separate log file for each of the plurality of subsets of storage tiers for maintaining a history of data changes in the subset of storage tiers, thereby creating a plurality of log files. In response to a change in data stored in at least one storage tier of a subset of storage tiers of the plurality of subsets of storage tiers, one or more log records including information about the change may be generated and written into respective log files.
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