is a facility used to house computer systems and associated components, such as telecommunications and storage systems

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1answer
292 views

What tools, parts, accessories do you keep in your Colo?

I know Colo is less popular these days with the Cloud, but I thought I'd ask people what tools and extra parts, etc they like to keep in their Colo cages or racks. Here are some of my favorites: ...
2
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2answers
489 views

Ethernet full duplexity and collision confusion!

Folks, I am having a tough time figuring this out: in a full-duplex LAN segment are there any collisions to be taken care of when (i) There are only two stations connected point to point (ii) When ...
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2answers
210 views

Out of Band Access - what's your favorite Terminal / Console Server [closed]

I am looking for a 32 or 48 port Console Server for access to routers, switches console ports in our Colo - any recommendations? The devices it would connect to are mainstream (Cisco, HP, NetApp, ...
15
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1answer
927 views

How to correctly move a server inside a rack up and down

Maybe a bit stupid question, but Sometimes (rarely but it happens) I need to move a server in a rack 1-2U up or down. What do you think, which of the ways is the most correct and useful and why? ...
3
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1answer
126 views

machine hour cost in data center?

Anyone knows rough machine hour cost in large data centers (like those of Amazon, Google or Microsoft)? Cost I mean rough real cost to data center provider (like those of Amazon, Google or Microsoft), ...
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3answers
9k views

What does “cross connect” means in Datacenters?

I have been doing some research on Datacenters and this is one of term that i have yet to wrap my mind around. I would appreciate if someone in the field could explain in simple terms what exactly ...
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3answers
137 views

centrally administered voip solution for multi-office company

I've been playing with VoIP IP PBX solutions for a few months, but I'm trying to find a solution that will allow for the following: An IP PBX based in a data centre (where SIP trunks will ...
0
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4answers
398 views

Datacenter power failure failover

We recently had our datacenter's power go. We are protected by an SLA and use DNS to redirect users when a failure is detected. DNS isn't designed to do this by design. Is this the most practical way ...
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3answers
150 views

Data migration over WAN

I have 50 GB on servers in switzerland, that need to be copied over our wan connection. After the data is migrated we'll switch the users to our newer server based computing solution. The only ...
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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 ...
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2answers
292 views

How to measure power usage effectiveness (PUE)

As part of a sustainability project I have been requested to measure the PUE of our server room. We have gross power usage figures from the UPS (and seperate supply meters) but nothing else. How in a ...
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2answers
181 views

Fastest connection between servers in Switzerland(any city) and London. Best Datacenter [closed]

I've spend 2 weeks searching best datacenter to get fastest conection beetwen Switzerland (<50ms). Is anyone know about some good DC?
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2answers
464 views

Buy vs rent for servers and other hardware

What are the pros and cons of buying your own dedicated servers and putting them in a data center yourself (along with firewall, router, storage, etc.) versus just renting? I have always rented but ...
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2answers
184 views

How much logging is done in Data Centers? [closed]

How much data is usually logged in data centers? Now I mean by the actual facilitator, not the individual clients renting space.
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3answers
367 views

Data center Rack space providers with Dedicated/Unmetered 10Gbps+ packages? [closed]

The only provider I know is FDC and I was hoping you guys could help me compile a list for comparison? The only requirements are that they 1) have 42U rack space and 2) have dedicated/unmetered ...
1
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1answer
444 views

What information do I need for initial setup of BGP?

Hey guys, I will be installing a MikroTik BGP capable router into a datacentre tomorrow, I have almost no idea how to do this but luckily there is an identical mikrotik router that has already been ...
44
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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
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2answers
3k views

How to step down voltage from 208V to 110V

I have some racks that will be fed by 208V/20A circuits. These circuits will be conditioned and battery-backed by the facility in which these racks will live. 99% of the devices in the rack will be ...
2
votes
2answers
508 views

Robot Datacenter Automation, can it be done? [closed]

To take the concept of automation to the most time consuming part of an IT infrastructure, rack and stack of a datacenter. What if there was a fully automated system of robots in a datacenter that was ...
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7answers
1k views

What tools, parts, and supplies should be kept in a data center?

I've been tasked with putting together a list of tools and supplies to keep on hand in a newly renovated data center. So far my list includes things that I think are fairly common (partial list ...
5
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1answer
702 views

Enterprise Data Center System Admin/Engineer to Server Ratio

I know there have been similar questions asked over the last few months however looking at a Data Center Operations and know there are some really smart people out there that might be able to help. ...
2
votes
4answers
505 views

Set up layer 2 vlan between 2 data centres

Our data centre provider operates 2 sites, and we currently have equipment in one and would like to have equipment in the second. They've told me that they operate a layer 2 vlan between the 2 sites ...
0
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3answers
718 views

Redundant APC UPS units, single server set up

We have a very relatively simple set up, looking for a very simple (reliable) solution: Setup: One Dell box with redundant power supplies running Windows 2003, plugged into two separate APC SmartUPS ...
8
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2answers
244 views

“Zinc Whisker” issues?

Good morning; We've been having intermittent power supplies failures in our data center that have been preliminarily attributed to "zinc whiskers". I'm just starting to read about them (I just ...
3
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6answers
343 views

Datacenter Colocation Phone

In my cage I don't get good enough phone reception. A phone that goes over the network also doesn't seem ideal for when I am working on the network. Do people have traditional phones delivered to ...
2
votes
2answers
602 views

2008 Datacenter over Enterprise

What are the advantages using windows 2008 Datacenter over Enterprise licensing ? Thanks.
2
votes
1answer
401 views

IIS7 failover cluster across datacenters

I have servers in two different datacenters with each datacenter getting static IPs. What I would like to do is setup the servers as IIS7 servers and allowing them to failover from datacenter to ...
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3answers
155 views

Some URLs fail to load on Windows web portal

I’m working in a large data center and have been assigned to troubleshoot and issue with a windows (IIS) web server that acts as a portal for a customer of the data center. This portal server is on a ...
4
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1answer
1k views

PDU says to ground to rack with “thread making screw”.. this is impossible?

I'm trying to use the 'thread making screw' to ground my Dell PDU to the Rack, however the metal on the rack is impossibly hard. Is this even required? The included screws don't even seem "thread ...
3
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2answers
262 views

How to define a layered model for Storage Architecture?

i don't have enough knowledge about storage systems but have to tell my audiences about how storage works in organization data centers. For this purpose to keep things simple, first i want to show ...
4
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0answers
5k views

What’s the best way to label cables in a data center [duplicate]

Possible Duplicate: What is the most effective solution you used to label cables? We're in the midst of planning for a big data center renovation at my office, which is going to result in a ...
6
votes
6answers
604 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, ...
0
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1answer
94 views

Best web service server configuration

We've just taken over supporting a system for a new client, and they would like to expand on the server infrastructure it uses. My expertise is more in development, I have a few ideas but I would ...
10
votes
4answers
890 views

How common are dropped packets in communications within a data center?

Let's say I have 2 machines in the same data center but not necessarily in the same rack. How common would dropped packets be when sent using UDP between these two machines? I'm asking under the ...
3
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1answer
784 views

What are the disadvantages of tree-based data center network design?

I am reading some papers on Data center network design from last years sigcomm papers. http://ccr.sigcomm.org/online/?q=node/523 Most of the papers published complains about tree based structure of ...
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3answers
444 views

Benefits of hosting servers at data centers?

There are several Data Center Network Designs, and I'm working on a research paper on this topic. To start with I'd like to know why to use data centers? Obviously besides the amount of space 10k ...
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2answers
93 views

How do you ensure that two data network links have no SPOF?

How do you ensure that two data network links have no SPOF (Single Point of Failure)? We are working on a datacenter network connectivity and need to ensure that there will be no SPOF. We will have ...
2
votes
3answers
1k views

How to hook up a server room? [closed]

I've often heard of people starting up server rooms from spare computers on their own. How would one do this? Is it possible to take a normal router and a few computers and create a server? If so, ...
1
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6answers
2k views

How does a server room work? [closed]

I know this is a site for professionals, but please bear with me. I have seen server rooms, and they have racks and racks of servers, routers, and switches. I want to know, what is the purpose of all ...
3
votes
1answer
716 views

MRJ-21 Patch Panel System

I was reading about the MRJ-41 Patch Panel system here, but not sure I entirely understand it. It looks like it allows me to wire my own patch panels because it it uses a special cable to attach the ...
6
votes
6answers
286 views

Things to consider when buying PDUs

I am thinking about getting new PDUs for my racks. I would like ones that are: Metered (Maybe remote monitored) Vertical Meet my power requirements (Voltage and amperage) Right number of outlets ...
2
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4answers
220 views

Datacenter Reviews

Anyone know of site that has a good amount of datacenter reviews? I have looked at datacentertalk.com and webhostingstuff.com , but I didn't find much on those sites.
4
votes
5answers
3k views

Lightweight Linux DNS

Can anyone recommend a lightweight Linux DNS server, which would be suitable for the data center? EDIT: We speak about data-center typically within 10 - 20 servers, up to 100 at maximum. For larger ...
6
votes
6answers
1k views

DHCP for data center

Can someone provide cons and pros for having DHCP in a data center? I know this is usually a taboo, but maybe there were developments which alleviate the said issues? Thanks.
2
votes
1answer
272 views

Datacenters in Angola / Africa

I'm not sure if this is SF-appropriate but I've a client that wants to open his websites to the African market (specially Angola), the problem is that the websites that are served by our American / ...
1
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1answer
613 views

Cassandra nodes in multiple data centers

http://www.cs.cornell.edu/projects/ladis2009/papers/lakshman-ladis2009.pdf : "Cassandra is configured such that each row is replicated across multiple data centers." So in that case is it good to ...
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4answers
193 views

data center in poland [closed]

Could you recommend some datacenter in Europe/Poland ??? Tier-3 or Tier-2.
6
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9answers
13k 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 ...
2
votes
5answers
395 views

Colocation payment policy? - does it depend on electricity?

I've used a colocation service for about 3 months. This is my first touch to run web servers in a data center, so I don't have any idea and information about server hosting (or colocation). Now, I'm ...
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1answer
244 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 ...