Non-disruptive configuration of a virtualization controller in a data storage system
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United States of America Patent
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Mar 31, 2015
Grant Date -
Jul 10, 2014
app pub date -
Mar 7, 2014
filing date -
Aug 31, 2011
priority date (Note) -
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Abstract
Embodiments of the invention relate to configuring a virtualization controller in SAN data storage system without disrupting I/O operations. One aspect of the invention concerns a method that comprises establishing a first data path between a host and a storage controller in the same communication zone wherein the storage controller comprises storage devices for storing data; adding a virtualization controller to the zone wherein the virtualization controller maps the storage devices to virtual volumes and establishes a second data path between the host and the storage devices through the virtual volumes; removing the first data path in response to the host detecting the second data path; and performing I/O operations between the host and the storage devices through the second data path.
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