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тАО04-05-2006 04:20 AM
тАО04-05-2006 04:20 AM
Fans are much louder than normal
Before this weekend the last server had 4x2GB and 2X512MB for memory. It has the extra 1GB total added. We never noticed anything when we did the upgrade over the weekend. Also, I didn't visit the server room the Monday and Tuesday after the upgrade, so I can't say I noticed anything. My support tech said he doesn't recall hearing anything though. Today, though (Wednesday), we noticed a very profound difference. One of those servers was about to launch into orbit. Its fans were spinning considerably faster. We *think* we isolated the louder fan noise to the last server I mentioned with all of the memory in it, and the only one we have actually done anything to in a while--the memory upgrade. Is there any reason that adding that extra 2x512 would trigger the server to spin its fans faster? And if so, why only after a few days?
We can't figure out anything about what could be causing this. CPU usages seem to be acceptable (pretty low overall). The server is a VMware ESX server. All of the hosted guest operating systems (only 4 right now) showed little CPU usage. The CPUs didn't feel hot when we felt them. Nothing in general felt really hot. Clearly, though, the server is blowing a LOT more air than it has in months past and it is much much louder than ever before (we had people asking why the server room was so much louder when we had the door open, and it is very much louder just listening to it down the hall when the door is open). Any guesses or help about this? Is it nothing to worry about? I probaby would have worried so much if this was doing this from day one, but this just started today after several months.
Oh, one last thing. I pulled each fan out individually while the server was running and put them back in. No one fan is considerably louder. They collectively all seem to be spinning much faster in that one server.
Thanks for any guesses or help into what to look into. If you want any more information, let me know.
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тАО04-05-2006 07:06 AM
тАО04-05-2006 07:06 AM
Re: Fans are much louder than normal
Hope this helps!
Regards
Torsten.
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тАО04-05-2006 07:22 AM
тАО04-05-2006 07:22 AM
Re: Fans are much louder than normal
I'll see about swapping all 5 fans after-hours with another one of our DL385s and see if the other server starts doing the same thing. If it does, it has to be a fan as you said. I need to see if there is a way with ESX server to monitor things like fan speeds.
Thanks for the suggestion--I'll look into it.
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тАО04-05-2006 06:22 PM
тАО04-05-2006 06:22 PM
Re: Fans are much louder than normal
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тАО04-05-2006 09:23 PM
тАО04-05-2006 09:23 PM
Re: Fans are much louder than normal
It will check all the hardware components and give you the result - to check any degraded hardware or failed components.
Please check this - http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=PSD_EL050819_CW01
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тАО04-06-2006 03:25 AM
тАО04-06-2006 03:25 AM
Re: Fans are much louder than normal
Thanks for the additional info and I'll dig into those things when I get back to the office. Sorry about my oversight.
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тАО04-06-2006 03:35 AM
тАО04-06-2006 03:35 AM
Re: Fans are much louder than normal
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тАО04-10-2006 12:36 AM
тАО04-10-2006 12:36 AM