System and method for identifying block-level write operations to be transferred to a secondary site during replication
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United States of America Patent
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May 30, 2006
Grant Date -
N/A
app pub date -
Nov 18, 2003
filing date -
Nov 18, 2003
priority date (Note) -
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Abstract
A method involves generating a block-level write operation, which causes a value to be written to a primary volume, and generating information indicative of whether any of the block-level write operation should be transferred to a secondary site during replication of data in the primary volume. The information can indicate that all, part, or none of the block-level write operation should be transferred to the secondary site. If the information indicates that less than all of the block-level write operation should be transferred to a secondary site, the information can also indicate that logical information associated with the block-level write operation should be transferred to the secondary site instead of transferring the value being written by the block-level write operation.
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