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CFBMC-609: Temperature-based policy implemented for multiple fan failures on HA systems with shared cooling

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HW
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Issue

  • Previously, the system environmental policy initiated a shutdown when two or
more system fan failures occurred. On high-availability (HA) systems with 
shared cooling, both nodes initiated a shutdown - resulting in service 
disruption.

  • Due to the change implemented as a fix to this bug, a temperature-based
environmental policy continues to be used to determine the need to perform
a system shutdown, regardless of the number of system fan failures.

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