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

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5
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2answers
1k views

Headset for phone calls in the datacenter

Datacenters are noisy places. On occasion it is necessary for an administrator or technician to troubleshoot a problem in the datacenter while on a phone call or conference call. Unfortunately, ...
0
votes
2answers
177 views

Match logical and physical network interface names

Our company planned to move their hundreds of servers (virtual and physical) to a brand new datacenter infrastructure. First, we have created a spreadsheet which lists the configuration of all the ...
-4
votes
2answers
132 views

What's the deal with using unreliable green energy in datacenters? [closed]

The news say that Google now uses 48 MW of electricity produced by wind turbines to power one of its datacenters. I've always heard that "green" energy is great, but it is unreliable - wind doesn't ...
2
votes
1answer
154 views

Forensics on Virtual Private servers [closed]

So these days with talks about having hacked machines being used for malware spreading and botnet C&C, the one issue that is not clear to me is what do the law enforcement agencies do once they ...
5
votes
3answers
5k views

If DNS Failover is not recommended, what is?

As a followup question to his very popular question: Why is DNS failover not recommended?, I think it was agreed that DNS failover is not 100% reliable due to caching. However the highest voted ...
239
votes
15answers
17k 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 ...
12
votes
1answer
3k views

What is the proper way to manage cabling behind patch panels?

I have a 4-post 19" rack with a 72-port 2U quickport patch panel where horizontal structured cabling terminates. The cables are bundled and enter the rack at the rear. From the back of the rack, ...
1
vote
1answer
84 views

How to share data across two data centers? [closed]

Let say I have 2 data centers in 2 different cities. Datacenter A to serve city A, and datacenter B to serve city B. How do I achieve the following scenarios: Redirect users in each city to ...
0
votes
1answer
4k views

What are EN, EP and EX platforms?

I keep hearing all these terms - EN, EP and EX level servers. What do these terms mean? What are they classifications of? How are they demarcated from one another? How are they different from the thin ...
7
votes
3answers
1k views

Source of PDU De-Rating?

In researching PDU's I have noticed most cite a derated current at the 80% level. For example, 30A is derated to 24A: Tripp Lite: Raritan: Does anyone have anything that shows what agency this ...
13
votes
2answers
17k views

How to manage a global VM startup order across the whole datacenter?

Suppose you have a fully virtualized VMware infrastructure: ESXi, vCenter, vMotion, HA, DRS, the whole package. Inside, you have lots of VMs, which at any given time may reside on one host or another ...
2
votes
1answer
2k views

How do I choose compatible rails for rack mounting my servers?

I am purchasing a rack mounted server and I have the option of also purchasing one of two types of railings: Rapid Rails for Dell Rack Versa Rails, Round Hole Universal Is there any difference ...
49
votes
3answers
3k views

Assessing equipment damage following a lightning strike - Should I have planned more?

One of my client's sites received a direct lightning hit last week (coincidentally on Friday the 13th!). I was remote to the site, but working with someone onsite, I discovered a strange pattern of ...
2
votes
4answers
1k views

How many hp dl360 g7 in a rack?

It might sound as "how long is a piece of string"? In my current job the process is to leave 1U spacing, with no blinders, between servers; this incurs a considerable loss of space, no event sparking ...
1
vote
1answer
326 views

Does Windows Datacenter Edition get patched centrally

I'm running an Amazon EC2 Windows 2008 Datacenter Edition instance. I tried to run Windows update on it a couple of times but it just seems to hang. Does the Datacenter edition get patched centrally ...
-3
votes
1answer
1k views

What are volume servers?

I am currently reading a lot literature about data centers. I often read the term "volume server" which seem to be some kind of standard server that we can rent today. However, I am not really sure ...
1
vote
1answer
157 views

Dell Blades or C-Series Rack servers for datacenter virtualization project [closed]

We have customers infrastructure hosted on physical HP boxes across several racks and finally we are planning to migrate them to Vsphere.Data is stored on NFS SAN.It was suggested to use c-Series Dell ...
0
votes
2answers
127 views

How to treat a request in DHCP from an unknown host?

I have quite few dhcp request from unlocated hosts, like: dhcpd: DHCPDISCOVER from 00:25:90:54:91:b7 via eth0: network eth0: no free leases Whats the best way to locate the host querying the dhcp? ...
3
votes
2answers
523 views

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 ...
1
vote
4answers
842 views

Is 2-5 ms between web and database server appropriate? (Different Datacenters)

I currently have a dedicated web and database server running in datacenter (DC) 1. Im about to expand with yet another web server in datacenter 2 that will talk to the db in DC 1. The latency ...
-2
votes
1answer
277 views

What software can I use for datacenter hardware monitoring? [duplicate]

Possible Duplicate: What tool do you use to monitor your servers? We've got a mix of Dell and HP servers in a colo and I'd like to have a hardware monitor so that we know about failed hardware ...
1
vote
2answers
67 views

Why would a company treat its web server hardware setup as confidential? [closed]

Recently I was reading a blog post (in Russian) about a huge datacenter. Commenters asked to show shots of racks with equipment installed by customers. The authors declined saying that customers ...
7
votes
3answers
353 views

DataCenter Certification

What kind of acceditations exist for a datacenter? I am not asking about process accreditation. Not ITIL, not ISO 20000. I am asking about an accreditation for the datacenter itself. As far as I can ...
0
votes
2answers
147 views

What's difference between private datacenter, and public cloud datacenter [closed]

I'm very confused to understand what a cloud datacenter actually is. In my experience, the main services of a data center are the following: Renting rackspace Rack colocation Server locating on ...
-8
votes
5answers
220 views

server migration in data center help & suggestions [closed]

We have about 15 Windows 2003 and 2008 servers at our data center, which host hundreds of different sites and databases. We have to move them to a new rack from 5th floor to 3rd floor. This move ...
7
votes
4answers
2k views

Open source DCIM stack?

Our 500-server data center is growing quickly and my manager has started investigating using a specialized Data Center Infrastructure Management (DCIM) package to help manage constraints. DCIM ...
2
votes
3answers
6k views

how find datacenter using a ip address related to that datacenter? [closed]

I have a vds and it's really good! I have some problems with my reseller of that server because of their support. I want to buy a server from that datacenter directly. How can I find that datacenter ...
6
votes
2answers
511 views

Tool(s) for labeling cables with unique ID numbers

We are looking to (finally) implement a cable labeling procedure. We already have a labler. Now we need a system to maintain unique IDs not related to anything. I thought of getting a tally counter ...
1
vote
5answers
2k views

database sync across servers in SQL 2008R2

as we are in the process of expanding of businees, now we are stepping a ahead to add few more datacenter, now we have a requirement where we need to sync the production database with other ...
1
vote
1answer
295 views

Inter DC traffic from L2 to L3

I'm doing a graduate degree in Data- and Telecommunication and as part of my last year I'm doing a project within a company. My company wants me to redesign their inter-datacenter connections, ...
11
votes
2answers
2k views

Using 48v for servers

I'm currently in the middle of a process to specify and design a new server environment for graphics and video rendering. We know we want to use blades, and we're pretty sure of our vendor decisions. ...
-4
votes
3answers
1k views

Where can I buy stickers/labels to put on rack systems/servers to identify them? [closed]

Where can I buy stickers/labels to put on rack systems/servers to identify them? I want to put my companies logo on them and also I want 2 sizes: small and larger. The larger stickers should have ...
5
votes
2answers
290 views

Sealing Tiles and Cable routes in datacenter fire supression

I've been given the task of moving a small datacenter (3 Racks) into a new building where a server room was built with water sprinklers. The issue was raised and the contractor changed it to an FM200 ...
2
votes
4answers
597 views

Monitor bandwidth usage of a datacenter

I would like to know what application is best for measuring bandwidth usage in large datacenters. Our company is in the process of setting up a DC which will have around 1000 physical servers. We ...
1
vote
1answer
91 views

Linux: Can I prepare a boot-disk for another system when CPU architecture differs?

On a remote server the boot/system disk is corrupting. It is running Debian 4.0 on an Intel Core 2 CPU 4300 @ 1.80GHz. Is it possible to "prepare" a bootable disk I'll then send to my ISP to install? ...
0
votes
1answer
2k views

Performance differences between Windows Server Enterprise and Datacenter?

I'm a student and participating on a Business Intelligence project at a german university. We have our own hardware (one server) and currently planning to set up our server. We can choose between two ...
4
votes
1answer
2k views

Any Integrated Mangement Tools out there? (DRAC, iLO, RAC)

So I have been on the lookout for a master tool to manage all my Integrated management adapters on our servers here. Such as Dell DRAC, HP Integrated Lights-out and IBM's RAC e.g mRemoteNG works ...
6
votes
1answer
580 views

Stretched datacenter between cities

We're planning to implement a stretched datacenter between our two sites. The connectivity between them is a single 100mbit QinQ connection. We have about 500 users at site A and 200 users at site B. ...
2
votes
3answers
642 views

Selecting the right router for our Data Center [closed]

We are currently in the planning stages. In the initial phase, we're looking at 6 servers (2 Varnish, 2 web and 2 database). The Data Center we're planning on going with states they have "blended, ...
8
votes
4answers
900 views

External load balancer solutions between EC2 and Rackspace

I have a website primarily hosted on EC2 with the backends (MySql) replicated async to a Rackspace store. I am also planning to have a suite of web server, cache & db on standby at Rackspace in ...
59
votes
10answers
4k 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 ...
4
votes
3answers
397 views

Do huge websites have more than one global uplink? [closed]

For example, Google has over 500 IP address, yet only around 20 data-centers. How can this be. From what I have read, a typical (huge) data-center will have 1 global uplink, a router, and a main ...
48
votes
7answers
3k views

How to take full ownership of an IP address?

My business is... troublesome. What I do is legal in every country on earth, but some people don't like it, and make it so tough on my poor ISPs that I am forced to go looking for new providers more ...
2
votes
3answers
382 views

Cross-Connect Between Data centers

Is it possible to cross connect between different data centers? I'm looking to connect to a financial exchange and need extremely low latency. The cost for a data center 100 metres down the road is ...
0
votes
4answers
135 views

Buying a Server vs Hosting on a Datacenter

I'm planning to host a website. It would be a photo-sharing website. I'm trying to find out a server that I should buy to put the website online. The website is in Apache PHP. I'm assuming the ...
-1
votes
1answer
665 views

Best switch and firewall to use in a Data Centre Rack? [closed]

Can anyone offer any suggestions on the best switch and firewall to use with Dell PowerEdge servers that are co-located in a Data Centre Half Rack? I'm looking at potentially a Cisco ASA5510 Firewall ...
2
votes
1answer
97 views

Normal ping between VPSs of one hoster

I use two VPS's from one hoster: one under Windows and other under Linux. I have sent ping from Windows instance to Linux and got 69ms time. I was shocked. I expected values like 1ms (as I previously ...
1
vote
1answer
507 views

Running MySql replication between datacenters

I run my website from EC2. Due to AWS outages, I am contemplating replicating my setup on Rackspace and switch over from DNS in case of an outage. I am looking to learn ways to replicate my MySql ...
2
votes
2answers
210 views

What happens if services like DynDNS to control failovers fails? It's probably?

In the next diagram I'm trying to have a backup web page in another datacenter and a service like DynDNS that controls failovers in SERVER A to switch to SERVER B. But, what happens if DynDNS fails? ...
0
votes
2answers
218 views

Starting a datacenter [closed]

I know maybe here isn't a good place to ask, but I'm about to start a little datacenter (hosting domains) and also hosting dedicated servers. [I don't know anything about server details] (and also i ...