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
3
votes
0 answers

Mixing SC/APC and SC/UPC

First, I apologize for posting a question in this site despite not having a football-court-sized datacenter under my management (I'm a tech support monkey at a small non-profit), but the topic seemed appropriate regardless. The question I have is:…
user1686
  • 10,162
  • 1
  • 26
  • 42
3
votes
1 answer

Send network signal over a very long distance of copper

I have an issue were I need to interconnect 2 switches together. We've estimated that they are 1400 meters away (cabling distance). I wanted to use a media converter to extend the signal on OS1 fiber, but I can't because I must pay a lot of monthly…
Narus
  • 35
  • 1
  • 5
3
votes
2 answers

What photograph technology is appropriate for site/datacenter documentation?

I manage 500+ sites and need a better visual way of documenting and walking people through a given datacenter. I'm considering taking several (hundred) pictures and stitching them together so that I can get a better view of the layout and…
makerofthings7
  • 8,911
  • 34
  • 121
  • 197
3
votes
1 answer

Is there a way to use a Xeon Phi 31S1P without a server case?

Due to the current ridiculous Xeon Phi 31S1P offering (~90% discount until end of year), we were tempted to investigate in the capabilities of this coprocessor, which seems well tailored for some of our CPU-intensive applications. Probably we…
Matteo Italia
  • 385
  • 3
  • 15
3
votes
2 answers

Why does the temperature in a pair of disks under RAID 1 showing a large temperature difference?

It appears quite strange to me that temperature readings derived from SMART for one disk is different from its twin in a RAID 1 configuration by as much as 9°C: # smartctl -d scsi -A /dev/sg1 === START OF READ SMART DATA SECTION === Current Drive…
Question Overflow
  • 2,103
  • 7
  • 30
  • 45
3
votes
2 answers

When do Dell PowerEdge servers (R210II and R620) automatically shutdown due to over heating?

I've had a hell of a time trying to find out when and how a Dell PowerEdge server (in my case we have a bunch of R210IIs and R620s with iDRACs) deals with overheating. I don't want to wait for the CPU to self-preserve, and ideally the server itself…
dubmojo
  • 203
  • 2
  • 12
3
votes
1 answer

I'm considering using a Mineral-oil as a coolant for a submerged server. What fire precautions should I take?

I'm investigating different ways to safely and efficiently cool down one of our servers that uses two GPU cards for intense renderings that takes hours to complete. The overall system wattage is about 1600 Watts per server and it generates a decent…
makerofthings7
  • 8,911
  • 34
  • 121
  • 197
3
votes
2 answers

Wattage Per Square Feet as a Measurement

I am used to looking at collocation providers where in U.S. are given as AMPs per rack (assuming 120V). I am looking into a place that rents space for servers which is listed as: "250 Watts per usable square foot" Using standard rack sizes with a…
Kyle Brandt
  • 83,619
  • 74
  • 305
  • 448
3
votes
3 answers

Equipment suggestion for exhaust and cooling for a small server room

I am currently looking for solutions to cool down and exhausting the heat that is currently being generated by our blade servers. Recently we migrated from 12 custom built tower servers to 5 1RU DELL 1850 Edge servers and 4 Dell 2950 Edge servers,…
N.Hughes
  • 31
  • 1
3
votes
8 answers

How can one reduce computer sound noise levels?

What measures can be taken to reduce the sound noise levels coming from computers (i.e. sound noise from fans, hard drives etc.) in an office space setting or home setting?
Spoike
  • 369
  • 4
  • 13
3
votes
1 answer

What does a temperature failure look like in the syslog?

I have a ubuntu server that I suspect failed due to overheating. I'm doing a post-mortem and I'm not exactly sure what to look for to confirm my hunch. Any thoughts on what logged information would indicate a failure from overheating?
Matt Sweeney
  • 259
  • 2
  • 7
3
votes
1 answer

Blade server in a nutshell?

Can anyone give a real description of a blade server and what it's advantages are besides space? Are there any disadvantages? And also, do you think smaller companies (think around maybe 4-5 actual servers) should invest in them or stick with the…
Tablemaker
  • 1,149
  • 1
  • 11
  • 23
3
votes
3 answers

Can a Switch be Wall Mounted Using Rack Mounts?

We need a new, fanless, managed 24-port switch for our small office and I'm considering the Cisco SG200-26. The issue is that the network cabling in the office means that the switch must be wall-mounted, oriented vertically, with the side containing…
JamesCo
  • 993
  • 2
  • 7
  • 9
3
votes
4 answers

server cooling - unique and odd situation

There were a lot of questions asked about server cooling, but I can't seem to find the one that fits our needs. Our server rack/cabinet is situated in the mail room, which can get extremely hot in the summer times. Plus, because we're on the top…
3
votes
4 answers

Best ways to move a server room and 80 desktops to a new building

Need to plan the best way to physically move a server room (12 IBM x3400 towers) and all associated networking equipment to a new building. Everything is going, comms (80 strong call centre operation), desktops(80-90) the whole lot and has to be…
Marko
  • 87
  • 6