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тАО08-27-2010 06:39 AM
тАО08-27-2010 06:39 AM
Proliant DL380G3 - Fan Speed Reset
I'd like to know two things:
1. The threshold temperature at which the internal fans switch from normal to high speed.
2. Whether the fans should reset to normal speed without rebooting server.
I find currently that only a reboot resets the fans to normal. When I come into the office, the temp has normalized, but the fan speed is still high.
This occurs on both servers.
Any suggestions would be appreciated!
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тАО08-27-2010 05:12 PM
тАО08-27-2010 05:12 PM
Re: Proliant DL380G3 - Fan Speed Reset
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тАО08-29-2010 07:19 PM
тАО08-29-2010 07:19 PM
Re: Proliant DL380G3 - Fan Speed Reset
I did find the thresholds by running server diagnostics on the Smart Start disk. Fans and Thermal sensors tested ok.
I checked the server room temp over the weekend and found that a ceiling exhaust fan was on - drawing hot are from under the door into the server room, and exhausting the cool out.
We will be having the exhaust fan disconnected.
Our remaining issue is the fan speeds not resetting to normal operation when the temps normalize @ night.
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тАО09-09-2010 11:05 AM
тАО09-09-2010 11:05 AM
Re: Proliant DL380G3 - Fan Speed Reset
Can anyone confirm to me that the DL380 G3 fans should reset without reboot when the temp normalizes in the server room.
Also, is there a temp threshold where the server will shut down to guard against hardware damage?
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тАО09-12-2010 05:29 AM
тАО09-12-2010 05:29 AM
Re: Proliant DL380G3 - Fan Speed Reset
Although the ProLiant DL380 G3 includes hardware-based fan control, HP recommends that the software-based fan control provided by the Health Driver be utilized since the Health Driver can incrementally increase or decrease the fan speed to account for changes in temperature within the server. Compared to software-based fan control, the hardware-based fan control logic in the ProLiant DL380 G3 server only has two speeds: low and full and is only capable of increasing the system fan speed from low to 100 percent when a certain temperature threshold defined within the System ROM is exceeded. Once the fan speed has been increased to 100 percent, there is no provision for the hardware to slow the system fans from 100 percent to low speed even if the internal temperature is later reduced below the temperature threshold. The only method to slow the system fans back to low speed once the internal temperature is reduced below the temperature threshold is by rebooting the system or by loading the Health Driver.
Seems you don't have the agents running on that server - installing the health driver should automatically do this without a reboot...
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тАО09-12-2010 05:37 AM
тАО09-12-2010 05:37 AM
Re: Proliant DL380G3 - Fan Speed Reset
http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?lang=en&cc=us&objectID=c01158873&prodTypeId=15351&prodSeriesId=3884082
That's in case the ASR is enabled of course...