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0answers
43 views

etcd will not start on CoreOS in OpenStack instances

I have deployed three instances of CoreOS in my OpenStack setup. I can ssh into the instances, but etcd will not start. systemcctl status -l etd says: ● etcd.service - etcd Loaded: loaded ...
4
votes
1answer
141 views

Heat generated by a HP ProLiant DL380p Gen8 entry EU servers

I have to buy a stand alone server rack to be placed in a machine room. The temperature can reach 30°C in the room (I have no choice with regards to the location). In order to correct for this I will ...
1
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0answers
56 views

Are /dev/disk/by-id symlinks unreliable?

I am provisioning a Nova server and Cinder volumes using a Heat template. In order to identify the Cinder volumes attached to my OpenStack server I would like to use the /dev/disk/by-id/... symlinks ...
12
votes
3answers
339 views

Heat Sink compound and older desktops and workstations

This is my first question asked on SF, so be gentle kids. As my desktops (approximately 110 or so) have begun to age and with my users resisting Windows 8, I've begun to notice an odd trend. We are ...
2
votes
1answer
323 views

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 ...
1
vote
2answers
150 views

CPU Cooling with Heatsinks [closed]

I've constructed a server that uses 2 Xeon E5-2620 CPUs and per Intel's recommendation I'm in the process of ordering heatsinks for each and I'm slightly concerned about thermal management. The case ...
6
votes
3answers
903 views

Rack Mounting a Server with hot air vents on the top?

We just got a couple of HP DL360 G7's, and I notice it has vents on the top. More hot air seems to exit through these vents than it does anywhere on the back. All our servers in the past have always ...
84
votes
11answers
6k views

Cooling Server Closet - No A/C Is Possible

We're moving into a new office in an old building in London (that's England :) and are walling off a 2m x 1.3m area where the router & telephone equipment currently terminates to use as a server ...
2
votes
3answers
256 views

Equipment suggestion for exhaust and cooling for a small server room [closed]

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 ...
3
votes
1answer
150 views

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 ...
0
votes
2answers
107 views

Windows Server 2008 Crash

My server has been restarting almost daily, some times twice a day. This started after changing the raid drives with larger drives. My log for the raid says everything is fine and has not had a single ...
0
votes
2answers
446 views

What's the standard for server closet HVAC?

My organization is in the process of looking for new space in Manhattan. We have 25 employees and are looking at offices that are around 7,000 sq. ft. I don't anticipate us ever needing more than a ...
2
votes
2answers
126 views

Heat-resistant adhesive labels

Most adhesive labels I've run across don't do so well when affixed to anything that puts off significant heat (rear of servers, external disks, some networking gear, ...). Since manual application of ...
1
vote
2answers
180 views

Hot video card in server

Not sure if this belongs here or Superuser (I looked at Superuser -- suspect there are more hardware gurus here). I have a server that sits in a cabinet. It's connected to a small screen that is ...
2
votes
2answers
124 views

Hard freezes and reboots when compiling

One of our workstations has begun to freeze or reset under some circunstances. We can reproduce this in both Linux and Windows so it's most likely a hardware issue. The freezes most usually happen ...
5
votes
3answers
189 views

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 ...
48
votes
17answers
10k views

Do you skip a rack unit between servers?

It seems like there's a lot of disagreement in mindsets when it comes to installing rackmount servers. There have been threads discussing cable arms and other rackmount accessories, but I'm curious: ...
2
votes
4answers
154 views

Possible Thermal Issue

My company has several Gateway E2300's, the slim desktops. One of the machines in particular may be having a thermal issue. THe symptoms are: at seemingly random times throughout the day the fan ...