Method, system, and program for accessing data from storage systems
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United States of America Patent
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-
May 2, 2006
Grant Date -
N/A
app pub date -
Nov 9, 1999
filing date -
Nov 9, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Disclosed is a system, method, and program for accessing a data set, e.g., volume, file, from one of two storage devices. Each storage device includes a copy of the data set. A flag is maintained for each storage device indicating whether a previous access attempt of the data set from the storage device failed. The storage device having the flag indicating that no previous access attempt failed is selected if the flag for the other storage device indicates that one previous access attempt of the data set from the storage device failed. The data set is accessed from the selected storage device.
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