BladeSystem - General
cancel
Showing results for 
Search instead for 
Did you mean: 

Any way to reduce C3000 noise

Ed Tse
Occasional Advisor

Any way to reduce C3000 noise

Hi all,

We have a C3000 with 2 active blade. The fan noise it generates is absolutely unbearable. OA shows fans running at 56% and it already is a jet engine.

Just want to know if there are any things we can purchase or settings we can tweak to make the fan slower.

I've already upgraded all the firmware using the DEC-2010 firmware DVD, and OA is now showing firmware 3.2.1 and iLO2 is 2.05.

This is not a new piece of kit, we had it running at our old office and we dedicated the store room for it, next to the kitchen, and it has been running for 2 years. But now we have relocated, and the room where we are placing this kit has people working close to the room. Even with the door closed, workers outside are complaining about the noise.

Just wonder do others with C3000 find this thing super noisy? How do you cope? I can't see how HP can sell this thing as suitable for use in an open plan office.
13 REPLIES
Ali
HPE Pro

Re: Any way to reduce C3000 noise

Hi there,

how many fans are there and what is placement of these fans(slot no)

server slot number ?

or you just attach the show all report (generated from OA >> enclosure settings ) for us to check the configuration and advice you best an possible way to reduce the noice.

thanks,
Aftab
I work for HPE
Looking for a quick resolution to a technical issue for your HPE products? HPE Support Center Knowledge-base – Just a Click Away!
See Self Help Post for more details
Ed Tse
Occasional Advisor

Re: Any way to reduce C3000 noise

We have 6 fans, and 4 blades sitting in the slot bay 1, 2, 5, 6 with only bay 1 and 5 switched on at the moment.

Power Mode: Redundant
Dynamic Power: Enabled
Set Power Limit: Not Set

Power Capacity: 2400 Watts DC
Power Available: 1388 Watts DC
Power Allocated: 1012 Watts DC
Present Power: 592 Watts AC
Power Limit: 2918 Watts AC


Enclosure:
Status: OK
Unit Identification LED: Off
Diagnostic Status:
Internal Data OK

Onboard Administrator:
Status: OK

Power Subsystem:
Status: OK
Power Mode: Redundant
Redundancy State: Redundant
Power Capacity: 2400 Watts DC
Power Available: 1388 Watts DC
Present Power: 584 Watts AC

Cooling Subsystem:
Status: OK
Fans Good/Wanted/Needed: 6/4/3
Fan 1: 9500 RPM (53%)
Fan 2: 7345 RPM (41%)
Fan 3: 9499 RPM (53%)
Fan 4: 9504 RPM (53%)
Fan 5: 7344 RPM (41%)
Fan 6: 9501 RPM (53%)
Ali
HPE Pro

Re: Any way to reduce C3000 noise

Hi Ed,

thanks for sharing the info.

Configuration looks absolutely fine..

I had observed the same issue some time back and what I did to isolate was to remove blade one by one to see if a particular blade is causing this... and we found out the issue with ILO firmware of one of blade server though it was the same level I had to downgrade and upgrade it again to fix the issue.

Also I guess you must have populated all the bays with a component or a blank.

also check the syslog for OA/server if any message is being generated.

thanks,
Aftab
I work for HPE
Looking for a quick resolution to a technical issue for your HPE products? HPE Support Center Knowledge-base – Just a Click Away!
See Self Help Post for more details
Ed Tse
Occasional Advisor

Re: Any way to reduce C3000 noise

Thanks Aftab,

Just out of interest, what is the typical fan speed of your setup?


Cheers,

Ed
Ali
HPE Pro

Re: Any way to reduce C3000 noise

Hi Ed,

I have just two blade and fan speed is 39%

did you swap the fans or notice which fan is making more noice?

Reseat the OA. when OA is pullled out fans will go full speed this is normal , put it back in and all will go back to normal.

thanks,
Aftab



I work for HPE
Looking for a quick resolution to a technical issue for your HPE products? HPE Support Center Knowledge-base – Just a Click Away!
See Self Help Post for more details
Trygve Henriksen
Respected Contributor

Re: Any way to reduce C3000 noise

What temperatures are you measuring?
both in the c3000 and in the room?
Ed Tse
Occasional Advisor

Re: Any way to reduce C3000 noise

It is currently just located inside a vacant enclosed office room.

Enclosure Ambient Temperature23°C / 73.4°F

Blade 1 BL460G1

System Zone 41°C
CPU Zone 30°C
CPU 1 30°C
CPU Zone 29°C
CPU 2 N/A
Memory Zone 56°C
Ambient Zone 23°C

Blade 2 BL460G2

System Zone 45°C
CPU Zone 30°C
CPU 1 30°C
CPU Zone 30°C
CPU 2 N/A
Memory Zone 60°C
Ambient Zone 24°C
Trygve Henriksen
Respected Contributor

Re: Any way to reduce C3000 noise

It may be that you need to get the ambient air temperature down a few notches.

We have 18 - 19 degrees air temp,
Enclosure Ambient 20,
and my fans are running at 31 - 34 % speed.
(I have a c7000, full of fans and PSUs, 2 x FC and 2 x Eth Switches, and 7 BL460c G6 servers, so )

As for HPs 'open plan office' suggestion, well...

Assuming that the office is located in a building where they habitually stress-test jet engines, it would be a possible use, yes...
(Had an incident with the old 1.80 ILO FW when it was new, which kicked the fan speed up to 79%... )
Ed Tse
Occasional Advisor

Re: Any way to reduce C3000 noise

Thanks Trygve,

Yeah our deployment is definitely what in the HP promotional video as the "non data center", I'll talk to the office manager to see if we can crank down the air con, but I suspect, human within the office will probably don't like that cold.

Funny thing is when I saw the C3000 at trade show, it wasn't as loud. I wonder are there special *undocumented* CLI commands to up the fan threshold?
Trygve Henriksen
Respected Contributor

Re: Any way to reduce C3000 noise

I would have tried some 'after hours' work, lowering the temperature when there's less people on site, to see what happens.

Also, the two servers not in use, could you remove those?
(And plug the holes, of course)

The fans furthest away from the active servers SHOULD have been idling(around 30%)
ChrisTan_1
Advisor

Re: Any way to reduce C3000 noise

Hi Ed,

can you also share if you populate the 4 interconnect bays? The C3000 fans will run at higher speed if you populate interconnect bays 2 and 4 as all fans now need to work harder to cool the interconnect bays as well.

I also agree with the suggestion to lower the ambient temperature.
Ed Tse
Occasional Advisor

Re: Any way to reduce C3000 noise

Yep, looks like some "after hours" work will be happening this weekend, to test if the ambient will have any effect.

Only used 2 of the interconnects, bay 1 and 3 is populated.
Ali
HPE Pro

Re: Any way to reduce C3000 noise

Hi Ed,

yeah... this testing will definately help.. please do share your observations once it is done.

Also what about reseating the OA and trying blades one by one to see if it makes any difference?

thanks,
Aftab

I work for HPE
Looking for a quick resolution to a technical issue for your HPE products? HPE Support Center Knowledge-base – Just a Click Away!
See Self Help Post for more details