STORAGE APPARATUS, STORAGE CONTROL METHOD, AND COMPUTER-READABLE RECORDING MEDIUM FOR RECORDING STORAGE CONTROL PROGRAM
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United States of America Patent
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Issued Date -
Sep 22, 2016
app pub date -
Feb 16, 2016
filing date -
Mar 19, 2015
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Abstract
A storage apparatus including a communication control unit that aggregates an oldest writing clock time for each of a plurality of storage units from a plurality of a retained pieces of information each relating to a writing clock time, calculates, for each of the plurality of storage units, a priority level having a positive correlation with a time difference between the aggregated oldest writing clock time and a predetermined reference clock time, assigns, to each of the plurality of storage units, a transmission bandwidth for transmission of at least one retained block of write data for each of the plurality of storage units among a plurality of the retained blocks of write data based on the calculated priority level, and transmits, for each of the plurality of storage units, the at least one retained block of write data to an external backup apparatus in accordance with the assigned transmission bandwidth.
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