Solved

Multiple NICS in a File Server? Why?

Posted on 2014-04-24
6
354 Views
Last Modified: 2014-04-29
Why would a server have three NICS?  Or even two for that matter?  How are they configured so as to avoid redundant reuqests?
0
Comment
Question by:brothertruffle880
6 Comments
 
LVL 9

Accepted Solution

by:
Red-King earned 200 total points
Comment Utility
There are many reasons to do this. You may have the NICs with different IPs, in different networks which otherwise cannot talk to each other.
Another example is to increase the bandwidth available to the server by 'Teaming' the NICs. Teaming can also require specific configuration on the switch (look up "LACP - Link Aggregation Control Protocol" if you're interested). When you team three 1Gbs NICs you end up with a 3Gbs NIC in the OS.
Teaming is probably the most common reason and has been added as native functionality in Windows Server 2012 R2.

Rory
0
 
LVL 28

Assisted Solution

by:jhyiesla
jhyiesla earned 100 total points
Comment Utility
An extension of the "teaming" concept is if you're running an OS like ESXi from VMware in order to make the server a host for virtual machines. All the VM's on the host share the bandwidth presented to it so in that case having more than one NIC makes the throughput on the VM's faster. There's a point of diminishing returns and more isn't necessarily better, but having 2-4 NICS on any given virtual network does give you more headroom to keep the VM's communicating at proper speeds.
0
 
LVL 5

Assisted Solution

by:CarlosDominguez
CarlosDominguez earned 100 total points
Comment Utility
The summary is: 1) teaming-aggregating-LACP (adding the bandwith of the NICs) and 2) setting different TCP/IP subnets so the server is accessible from both networks.

The very detailed explanation of options:
http://blogs.technet.com/b/josebda/archive/2010/09/03/using-the-multiple-nics-of-your-file-server-running-windows-server-2008-and-2008-r2.aspx
0
What Should I Do With This Threat Intelligence?

Are you wondering if you actually need threat intelligence? The answer is yes. We explain the basics for creating useful threat intelligence.

 
LVL 9

Assisted Solution

by:Red-King
Red-King earned 200 total points
Comment Utility
On the teaming point, this also provides redundancy.
You apply the IP configuration to the Teamed interface in the OS. As a result, if one of the NICs fail the link stays up but with reduced capacity.
0
 
LVL 14

Assisted Solution

by:small_student
small_student earned 100 total points
Comment Utility
You may also use the server as firewall or Router. This is a typical scenario if you have a Linux box acting as your Firewall/Router. Each Interface represents a different Network.
0
 

Author Comment

by:brothertruffle880
Comment Utility
Thank you all.  This was quite a revelation.
0

Featured Post

How your wiki can always stay up-to-date

Quip doubles as a “living” wiki and a project management tool that evolves with your organization. As you finish projects in Quip, the work remains, easily accessible to all team members, new and old.
- Increase transparency
- Onboard new hires faster
- Access from mobile/offline

Join & Write a Comment

Remote Apps is a feature in server 2008 which allows users to run applications off Remote Desktop Servers without having to log into them to run the applications.  The user can either have a desktop shortcut installed or go through the web portal to…
Article by: kevp75
Hey folks, 'bout time for me to come around with a little tip. Thanks to IIS 7.5 Extensions and Microsoft (well... really Windows 8, and IIS 8 I guess...), we can now prime our Application Pools, when IIS starts. Now, though it would be nice t…
Sending a Secure fax is easy with eFax Corporate (http://www.enterprise.efax.com). First, Just open a new email message.  In the To field, type your recipient's fax number @efaxsend.com. You can even send a secure international fax — just include t…
Excel styles will make formatting consistent and let you apply and change formatting faster. In this tutorial, you'll learn how to use Excel's built-in styles, how to modify styles, and how to create your own. You'll also learn how to use your custo…

763 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

5 Experts available now in Live!

Get 1:1 Help Now