Questions tagged [physical-environment]

This tag is appropriate for questions dealing with the physical environment of a system/deployment (e.g. dust, vibration, etc.) with no better, more specific tag.

This tag is appropriate for questions dealing with the physical environment of a system/deployment. Examples include questions asking about "special" environments, like:

  • Substantial shock/vibration
  • High dust levels
  • High levels of EM interference
  • Extremely hot or cold temperatures, or wide temperature swings
  • Extremely humid areas

If a more specific tag exists, please use that instead.

196 questions
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Air is out in server closet, not going to be fixed until tomorrow... What to do?

We are a small company, so we have a small closet with one server rack. This closet has very good ventilation, so that's not a problem - but today the air went out on this side of our company suite. It didn't occur to me until just now, that means…
Ricket
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APC Smart-UPS: remote power shutoff?

Given: A server room containing about two dozen rackmount servers and a PBX. About a dozen APC Smart-UPS 2200s providing power to this equipment. A fire suppression project requiring immediate shutoff of power to all servers in the event that the…
Skyhawk
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6 answers

Data Center Design and Preferences

When either selecting a data center as a co-location facility or designing a new one from scratch, what would your ideal specification be? Fundamentally, diversified power sources, multiple ISPs, redundant generators, UPS, cooling, and physical…
Warner
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5
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7 answers

How do I lubricate a noisy fan?

I have a case fan that can be quite noisy. I can take the fan out of the case, peel back the sticker on the center to expose access to the bearings, and lubricate the fan. Thus far, I've been using a few drops of WD-40, but after a few days the fan…
Greg Mattes
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5
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3 answers

Purpose of vent holes on the top of rackmount servers?

Edit: Because of the high number of downvotes on this question, I would appreciate if you could comment on why you think the question deserves so. I believe the question is clearly asking for the purpose of those vents. Suggestions and edits on how…
5
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5 answers

LSI MegaRaid - get HDD temperature

Is there any way to get a drive temperature using MegaCLI or any other utility? Like "tw_cli /cx/px show temperature" in 3ware. OS: Solaris x86.
disserman
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Water-Cooled Rack Door: does it work well with Blades or GPU nodes?

We're considering to equip out server farm with water cooled rack doors, similar to…
Pavel
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2 answers

HP DL380 G6: Where is Temperature Sensor 30 (I/O Board Zone)?

In ILO2 firmware 2.15 on my DL380 G6, the Temp 30 sensor (location: I/O Board Zone) indicates 65C and my fans are running at 78% capacity. The Caution level for this zone is 110C, and the Critical level is 115C. Would anyone know where is located…
Alexandre Vovan
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Office Server Room With Bad HVAC Affecting Lungs

I work in a University office that is a small triangle in shape, about ten feet at the window and five feet at the door, with a length of about fifteen feet. The University has used this office to also host about eight Dell servers and several PCs…
Steve
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Where do I put the server in a cramped office?

We have very limited options for our first server in our small office and none of them look good. We are buying one HP Proliant ML350 G5. Per the HP power calculator with our system specs, we're looking at 1500-1750 BTUs/hr. Our options for…
Jonathan
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5
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3 answers

Linux programme to show me how much the fans are running?

I can use lm_sensors to tell me the tempature of various things on my laptop. And sometimes I can hear the fans starting up. Is there anything that will show me how fast various fans on my system are spinning?
Amandasaurus
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Is it safe to ignore the lm-sensors voltage alarms?

I am building a small NAS server, the motherboards is a Intel D2700MUD (fanless) and the PSU is "Ace Outburst 480W". After installing Ubuntu Server, I installed lm-sensors. The output: coretemp-isa-0000 Adapter: ISA adapter Core 0: +38.0 C …
pojo
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3 answers

Best orientation for CPU blower/cooler in 1U chassis

I'm putting together a 1U rackmounted PC. I have a blower cooler for the CPU, but the chassis has no fans at all. What would be the correct way to orientate the CPU cooler? With the air blowing in the direction of the power supply, or across the…
Acorn
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5 answers

Walk-In Cooler Server Room?

After searching a little bit, I wasn't able to find any specific information on this, so here I am. We've got a single 42U rack with 6 servers and some switches. It is currently housed in a coat closet with a 14,000 btu portable air conditioner (our…
Michael
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Are there general guidelines for fan configuration/capacity for operating at altitude?

Background: The server I'm configuring needs to be able to work at altitudes up to 10,000 feet. Are there any rules of thumb or guidelines on how much faster fans have to spin at altitude (due to lower air density) to provide adequate cooling? Or…
eglaser
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