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тАО06-13-2005 01:55 AM
тАО06-13-2005 01:55 AM
rp2470 temperature env. settings
we are having problems with one of our AC units in the server room and last week, the machine automatically shut itself down due to overheat alert, which is great.
however, I am trying to determine what the current temperature of the machine is (if possible) and also what are the thresholds that it determines when to shut itself down.
Any suggestions?
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тАО06-13-2005 02:32 AM
тАО06-13-2005 02:32 AM
Re: rp2470 temperature env. settings
Try this link from itrc,
http://www1.itrc.hp.com/service/cki/docDisplay.do?docLocale=en_US&docId=200000066027971
The itrc doc id is UCMDSKBRC00010338.
Hope this helps.
Regds
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тАО06-13-2005 02:33 AM
тАО06-13-2005 02:33 AM
Re: rp2470 temperature env. settings
The /etc/envd.conf determines the actions that system will take when threshholds are reached. The hardware guide should give you the required details.
Anil
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тАО06-13-2005 02:35 AM
тАО06-13-2005 02:35 AM
Re: rp2470 temperature env. settings
http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=205033
Pete
Pete
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тАО06-13-2005 03:12 AM
тАО06-13-2005 03:12 AM
Re: rp2470 temperature env. settings
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тАО06-13-2005 03:20 AM
тАО06-13-2005 03:20 AM
Re: rp2470 temperature env. settings
Pete
Pete
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тАО06-13-2005 03:21 AM
тАО06-13-2005 03:21 AM
Re: rp2470 temperature env. settings
I have recently purchased several units from AKCP, Inc.
http://www.akcp.com
The unit I use is their SensorProbe 2. It has 2 inputs and they have a good selection of sensors to use with the unit. I use the combination temperature/humidity sensor. The sensors look like a regular CAT5 network cable so they are easy to run and they come in varying lengths so you can run them just about anywhere you want.
You can program the unit to send e-mail messages when certain thresholds are met. The unit can also send SNMP traps.
This unit is small and relatively inexpensive.
More details on the SensorProve 2 here:
http://www.akcp.com/company/sensorProbe2.htm
Available Sensors:
http://www.akcp.com/company/intelligentsensors.htm
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тАО06-24-2005 01:30 AM
тАО06-24-2005 01:30 AM
Re: rp2470 temperature env. settings
Monitoring the temperature is only for findinbg blame. The fact that the AC failed and you have just had to scrap a million dollars in equipment is not a solution. Using computers to monitor the temperature, while elegant, is fraught with danger. You can safely assume that by the time the computer senses the temp rise, sends an email to the pager company and it gets to your pager, it's far too late to run to the data center and shutdown the equipment. Most IT centers will go over 100 deg F in less than 10-20 minutes with a total AC failure.
The best solution is to use a thermostatically controlled circuit breaker for the data center. This breaker is mechanical (no computer and network problems) and removes all power from everything once an overtemp is sensed. You can set this to something higher, say 110 or 120 deg F since it will take several minutes for the the equipment to follow this kind of a jump. The breaker yanks the power--no shutdown at all. But at least the hardware is protected.
For a more sophisticated system, add some auto-shutdown tools (keep the mechanical breaker) which start the shutdown process. Note that every opsystem will need a different mechanism to trigger the shutdown.
Bill Hassell, sysadmin
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тАО06-24-2005 01:17 PM
тАО06-24-2005 01:17 PM
Re: rp2470 temperature env. settings
the units.
One of the common state of the art stupid data center design mistakes is saving money on the backup generator so that there is not enough capacity to run the AC units eventhough the computer eqipment will run just fie and dandy - until it melts.
I've seen this happen more times than you would believe.
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тАО06-25-2005 01:57 PM
тАО06-25-2005 01:57 PM
Re: rp2470 temperature env. settings
Bill Hassell, sysadmin