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тАО08-12-2007 11:57 PM
тАО08-12-2007 11:57 PM
envd works with two threshold levels for environmental temperature : critical and emergency (OVERTEMP_EMERG and OVERTEMP_CRIT). By default, when emergency threshold is reached, envd issues a shutdown. As far as I understand it correctly, envd reads events directly off the hardware (propably GSP/MP), but I was unable to find out how to translate these symbolic thresholds into absolute value of Celsius grades and perhaps how to increase/decrease particular threshold levels. Hints on this one are more than welcome.
regards
Michal
Solved! Go to Solution.
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тАО08-13-2007 12:22 AM
тАО08-13-2007 12:22 AM
SolutionOVERTEMP_CRIT = over 30 degrees Celsius
OVERTEMP_EMERG = over 34 degrees Celsius - the usual response to this is for envd to complete a graceful shutdown
There's another event at about 40 degrees Celsius which will cause the platform monitor to just remove DC power to the system (non graceful halt), but unless temperatures go up VERY quickly you shouldn't reach that one.
You can't change any of these values - nor should you even attempt to - HP have determined the safe operating envelopes for the systems, changing them would probably invalidate warranty.
Of course it goes without saying that temperature sensor in servers are not sensible methods of determining ambient temperature in your datacentre.
HTH
Duncan
I am an HPE Employee
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тАО08-13-2007 12:26 AM
тАО08-13-2007 12:26 AM
Re: chassis temperature thresholds
HTH
Duncan
I am an HPE Employee
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тАО08-13-2007 12:29 AM
тАО08-13-2007 12:29 AM
Re: chassis temperature thresholds
Changing the threasholds is a bad idea. These systems are though, but operating them outside normal temperature will eventually do serious damage to them.
SEP
Owner of ISN Corporation
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тАО08-13-2007 12:31 AM
тАО08-13-2007 12:31 AM
Re: chassis temperature thresholds
temperature thresholds are hardwired