Throttling an asynchronous remote copying system
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United States of America Patent
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Apr 30, 2013
Grant Date -
May 15, 2008
app pub date -
Nov 12, 2007
filing date -
Nov 15, 2006
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A storage control system comprising: one or more I/O processors for receiving requests to write data; a batch controller for selecting one or more write requests to be placed in a first batch; a first server for transmitting the first batch to a second server in a remote copy pair system; one or more I/O handlers for writing the first batch to completion on a data storage medium, in response to receiving permission from the second server; and one or more clients for communicating with the I/O processors and the I/O handlers, wherein the permission is granted when the second server is notified by the I/O handlers that previous write requests have been completed, wherein the first server is responsive to the completion of the first batch.
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