Redfish HealthRollup/LED question

[James Feist]

On 7/14/2020 4:44 AM, Deepak Kodihalli wrote:
> Hi James/Gunnar,
> 
> On IBM platforms, a fault indicator LED associated with a FRU can 
> indicate the "Health Rollup" status of the FRU. For eg a CPU can be 
> healthy, but something contained within (eg a core) may be broken, so 
> the LED will be turned on. I think the Redfish HealthRollup property is 
> conceptually similar.
> 
> Question is - do you see a problem if we add code in bmcweb that sets 
> the HealthRollup property for a FRU if an associated LED is turned on? I 
> believe this is aligned with 
> https://github.com/openbmc/docs/blob/master/designs/redfish-health-rolllup.md 
> (no new D-Bus objects/interfaces being added, etc). On IBM platforms, a 
> D-Bus association might exist between the FRU and the LED, and setting 
> the HealthRollup property will be based on this. If the said association 
> is missing on other platforms, the code will not do anything.

What changes does this require? I believe this is how the health roll up 
functions today.

> 
> Thanks,
> Deepak