Questions tagged [datacenter]
is a facility used to house computer systems and associated components, such as telecommunications and storage systems
329
questions
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software for rack visualisation [closed]
Can you recommend any (preferably open-source) software for server racks visualization? Ideally it should be able to draw cable links between pieces of equipment, and should be scriptable to some ...
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1
answer
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Server room near the transformer units
Need to clarify what problems may arise from servers in the server room when a transformer station is at a distance of 10 meters.
thanks.
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3
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How can I avoid having to tell my clients to modify their domains' DNS settings? [closed]
My web application requires that clients point their A records for their domains to an IP address that I tell them to point them too. Later, when I need to scale from 2 servers that I currently have ...
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1
answer
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Hosting websites in our Workplace custom-built datacentre
I'm faced with unique learning opportunity at work at the moment. Due to the slowdown (amongst other reasons), the powers that be at my office have decided to abandon our shared hosting providers (...
16
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2
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What are the different classes of Internet Connection and how do they differ?
I'm looking for the technical differences between consumer and professional Internet connections. By "professional" I mean:
The kind you can get at a datacenter
The kind you can get at an office that ...
1
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1
answer
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How Does EoR Design Work with Multi-tiered Data Center Topology
I just did a ton of reading about the different multi-tier network topology options as outlined by Cisco, and now that I'm looking at the physical options (End of Row (EoR) vs Top of Rack(ToR)), I ...
3
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3
answers
907
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Why are the prices for broadband bandwidth at data centers much higher than consumer/small business offerings? [closed]
The prices for broadband bandwidth at data centers are sometimes as much as 10x higher than for a typical small business/consumer connection, at least where I live. Now, I understand those are two ...
4
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4
answers
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Process for configuring network settings on a headless rack mount device
I'm with a small company that plans to sell a rack mounted network appliance which is configurable via a web interface (think of a router configuration page sort of deal), and I'm wondering in large ...
6
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2
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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
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2
answers
346
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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 ...
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2
answers
146
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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
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1
answer
277
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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 ...
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3
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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 ...
269
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15
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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 ...
13
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1
answer
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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
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1
answer
255
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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
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2
answers
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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 ...
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3
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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 is (...
14
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2
answers
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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 ...
4
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1
answer
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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 ...
56
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4
answers
7k
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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
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4
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3k
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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
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1
answer
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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 ...
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1
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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
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1
answer
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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
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2
answers
314
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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
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2
answers
796
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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
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4
answers
3k
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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 ...
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1
answer
437
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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
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2
answers
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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
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3
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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
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2
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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 ...
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5
answers
262
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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
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4
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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 ...
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3
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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
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2
answers
784
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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
5
answers
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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 ...
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1
answer
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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
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2
answers
5k
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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. ...
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3
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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
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2
answers
544
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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
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5
answers
784
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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
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1
answer
105
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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
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1
answer
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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
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1
answer
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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
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1
answer
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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
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3
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1k
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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
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4
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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 ...
63
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10
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6k
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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 ...
3
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3
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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 ...