State copying method for software update
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United States of America Patent
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Oct 8, 2002
Grant Date -
N/A
app pub date -
Mar 11, 1999
filing date -
Mar 12, 1998
priority date (Note) -
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Abstract
To provide an approach to software update with scaleable disturbance there is proposed a state copying method for a computation system with at least two logic partitions wherein a state of new software in a standby partition is updated to the state of old software in an executing partition while continuing execution of the old software. Data is transferred from the executing partition to the standby partition in a scaleable way and as soon as the same state is achieved for the standby partition and the executing partition the execution is switched to the new, software. This provides a scaleable degree of disturbance due to the software update.
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