Disk array device
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United States of America Patent
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May 7, 2013
Grant Date -
Oct 1, 2009
app pub date -
Jun 4, 2008
filing date -
Mar 27, 2008
priority date (Note) -
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Abstract
In control of the disk array device (backup system), when a blackout occurs, the disk array device is first operated in a first method to backed up a main memory by using a power supply from a battery. During the first method, a blackout continuous time and the like are integrated, and at a timing in which the integrated value satisfies a condition, the first method is then shifted to the second method to evacuate data from the main memory onto a nonvolatile memory based on a power supply.
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