Apparatus and method of null data skip remote copy
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United States of America Patent
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Apr 4, 2006
Issued Date -
N/A
app pub date -
Oct 31, 2002
filing date -
Oct 31, 2002
priority date (Note) -
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Abstract
A method and apparatus are provided for enhancing the performance of storage systems is described. In the making of an initial copy to a secondary subsystem, or in the initial storage of data onto a primary storage subsystem, null data is skipped. The data may be skipped by sending the non-null data in sequence so missing addresses are identified as being null data, or a skip message may be used to designate regions where null data is to be present.
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