Remote copy with path selection and prioritization
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United States of America Patent
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May 3, 2011
Grant Date -
Oct 23, 2008
app pub date -
Jun 26, 2008
filing date -
Mar 30, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method for handling a remote copy request in a distributed storage includes providing a plurality of primary volumes within a primary storage system that is coupled to a primary host via a first network, the primary storage system being coupled to a secondary storage system via a second network. A first request is selected from a plurality of requests placed in a queue based on priority information associated with the requests. A first path group is selected from one or more path groups that could be used to transmit the request. The first request is transmitted to the secondary storage system using the first path group, the secondary storage system including a plurality of secondary volumes that are paired to the plurality of primary volumes.
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