Storage system and controlling method thereof, and device and recording medium in storage system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Feb 27, 2007
Grant Date -
Jul 21, 2005
app pub date -
Apr 20, 2004
filing date -
Jan 19, 2004
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A first storage device control device stores, when a first data write/read request is received, correspondences between first logical units and second logical units referenced when determining whether or not storage regions identified by first logical units set in the request are storage regions of the first logical device control device or storage regions of a second storage device control device, the second storage device control device transmits all or some of identification information (logical unit information) of the second logical units to a management computer, the first storage device control device transmits all or some of the correspondences (mapping information) to the management computer, and the management computer references the received logical unit information and the mapping information to generate information representing whether or not the second logical units are corresponded to the first logical units.
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