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Getting Fujitsu Siemens rack server temperature readings...

Posted on 2010-08-16
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I'd like to monitor the sensory temperature readings of a RS300S6 rack server. It's our only fujitsu server, so ServerView is quite a bit of overkill. On top of it, I could not get ServerView Operations Manager started without errors preventing it to function.

So I'm asking, what would be the practical way of getting the temperature readings off a RS300S6? I tried SpeedFan, but I don't entirely trust the results it shows. The OS is Windows Server 2008 R2.
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Question by:Synocus
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by:Xenix
ID: 33445362
My take on the problem would be snmpwalking the server, sift through the returned OIDs, find the right one and then snmpwalk that one only from that point on.

There is a few issues though, you would need to make sure some kind of SNMP agent was runnning on the server (I have no idea if windows servers has SNMP agents running default), and you would have to make sure the firewall allows SNMP'ing from the host you'd be using for monitoring the server.
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by:Synocus
ID: 33452295
A solution for getting temperature readouts locally on the server is enough. SNMPwalk in our situation is slightly overkill. SpeedFan reports cores to hover around 20 degrees celsius while it's 30 degrees in the rack isn't exactly trustworthy results.
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Xenix earned 500 total points
ID: 33452351
The software rarely has any impact on the temperature readout, it usually just pulls a temperature out of one of the temperature sensors in the server, so if the software itself is satisfactory I would instead focus on getting a temperature you can be comfortable with.

I skimmed the documentation for SpeedFan and it seems it is configurable as to which sensor it uses for reporting, so if I were you I'd play around a little with the various sensors, in my experience you are usually interested in one of these three readings:

Temperature at entry (the air pulled in from the surroundings).
Temperature at exit (temperature after all components have been cooled)
CPU temperature (the CPU is typically considered the most sensitive component)

If you distrust the readings, a verification measure is going into BIOS and looking at the temperature readouts there, sometimes what the sensors report and what the software is expecting to receive are two different things, for instance the sensors might report temperatures in ranges of 2 degrees and the software expects to receive temperature readings in whole degrees.
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