203
votes
15answers
11k views

I've inherited a rat's nest of cabling. What now?

You know, you see pictures like below and sort of chuckle until you actually have to deal with it. I have just inherited something that looks like the picture below. The culture of the organization ...
53
votes
10answers
3k views

How to extinguish a small fire in a server rack to minimize damage to surrounding equipment?

Suppose I have a rack with several servers and other stuff. One of servers overheats severely and either starts smoking or catches fire while there's a serviceman nearby. If anything similar happens ...
12
votes
9answers
4k views

Why datacenter water cooling is not widespread?

From what I read and hear about datacenters, there are not too many server rooms which use water cooling, and none of the largerst datacenters use water cooling (correct me if I'm wrong). Also, it's ...
5
votes
3answers
1k views

Server Room Temperature Control - Does anyone have a similar setup?

Our Server room is located in the middle of our building and has no access to a window or outside ventilation. I had a quote done by a local heating/air conditioning company to install a room specific ...
44
votes
8answers
2k views

How is fire spread in server rooms and datacenters?

Every now and then I read that a severe fire has happened in some datacenter, lots of equipment has been damaged and customers have gone offline. Now I wonder what is there to support and spread fire? ...
6
votes
6answers
607 views

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, ...
6
votes
10answers
14k views

Rack layout tools

I'm wondering if there's any tools (preferably offline) that would allow me to layout all of the new equipment that will be going into several standard racks. Currently I'm using Excel to map out all ...
0
votes
1answer
246 views

Solution for TC / server closet in TIGHT area?

A non-profit volunteer organization that I do some admin work for is in the process of planning a major renovation to their building, which is more or less a converted house (no basement, uninsulated ...
0
votes
3answers
216 views

Data center equipment vendors? [closed]

I'm wondering where people purchase their data center / server room components from. In particular, I'm looking to install an Emergency Power Off switch in our server room and have been looking for a ...
35
votes
34answers
36k views

Monitoring server room temperature

I have a small server room with its own AC unit. Recently, the AC died, and the temperature increased from 70 F to > 90 F. We rarely go in this room, so I was lucky that someone happened to notice ...
44
votes
14answers
93k views

What is the correct temperature for a server room?

When I was working in our server room, I noticed that it was very cold. I know that the server room has to be cold to offset the heat of the servers, but perhaps it is TOO cold. What is an ...
13
votes
2answers
14k views

Ideal humidity for a server room?

Most equipment is rated for a wide range of humidity (5 to 95% non-condensing, for instance). However, what is the ideal humidity? Higher humidity carries heat away from equipment a little better, ...
9
votes
2answers
1k views

How can you predict the amount of cooling needed for a particular piece of equipment?

Every summer we have to shut down some equipment due to a combination of outside temperature and high load. The air conditioners just can't keep up. As we cycle in new equipment and cycle out old, ...