Recovery method for a high availability data processing system
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United States of America Patent
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Mar 25, 1997
Grant Date -
N/A
app pub date -
Oct 16, 1995
filing date -
Nov 12, 1994
priority date (Note) -
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Abstract
A method is described for rapidly recovering a multi-processor data processing system from failure of a boot disk. Each data processing unit in the system has a private boot disk, and at least one shared disk. The processing units are interconnected so that each processing unit has access to its own private boot disk and also to the shared disks in all of the processing units. If the boot disk of one of the processing units fails, the system is temporarily reconfigured to connect a new boot disk in place of the shared disk in that processing unit. Another of the processing units is then operated to copy the contents of its own boot disk to the new boot disk.
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