Maintaining computer system operability
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United States of America Patent
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Apr 25, 2017
Grant Date -
Jan 1, 2015
app pub date -
May 30, 2014
filing date -
Jun 28, 2013
priority date (Note) -
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Abstract
Maintaining operability of a network-connected data processing apparatus is provided. In response to a requirement for failover from a first resource to a second resource, one or more processors tests an availability of the second resource, wherein the first and second resources are redundant resources of a network-connected data processing apparatus that is communicatively coupled to at least one host computer. In response to a positive determination of the availability of the second resource, one or more processors initiates the failover; and in response to a negative determination of the availability of the second resource, one or more processors provides an indication of unavailability.
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