Solved

Best way to plan Network adapters for Hyper-V Images

Posted on 2014-03-20
3
279 Views
Last Modified: 2014-11-12
Planning a server with 2-4 DIfferent Hyper-V Images.

Windows Server 2012 R2, SQL Server 2012, Possible 1-2 more Windows Server 2012 images.

Is it best to dedicate 1 nic per vm or 2 nics per vm?

Do 2 vm's actually give you 2 Gigabit?
0
Comment
Question by:MJCS
  • 2
3 Comments
 
LVL 56

Assisted Solution

by:Cliff Galiher
Cliff Galiher earned 500 total points
ID: 39944217
With 2012, things have changed pretty significantly regarding networking and those changes do have an impact on hyper-V planning as well. Personally, in most scenarios (there are always edge cases) I do not dedicate NICs to VMs anymore. Now that 2012 supports native teaming, you can team them up based on how many virtual networks you want or need, bind the team to the virtual switch, and then attach your VMs to that switch. You can use new QoS features to ensure that critical VMs are gauranteed bandwidth on the team and you get better network utilization because, unlike a "dedicated" NIC (or two), they won't sit idle while another VM runs full-tilt. All VMs get the aggregate bandwidth as needed, basically giving you the network benefits that virtualization has brought to storage and CPU utilization for years.

Technet has many resources on these new configurations and several videos. Instead of posting a dozen or so links, I simply recommend turning to your favorite search engine.
0
 
LVL 2

Author Comment

by:MJCS
ID: 39944229
How do you calculate how many NICs to add to a new deployment?
0
 
LVL 56

Accepted Solution

by:
Cliff Galiher earned 500 total points
ID: 39944242
A combination of an on-site audit, a custom spreadsheet that incorporates our years of experience, and a little bit of intuition. We also modify and update our proprietary deployment docs, including the spreadsheet, as new technologies evolve...such as SMB3, native NIC teaming, and increasing popularity of cloud applications.

The number of NICs I'd put in a Hyper-V running in a 3 node cluster will be different than one running VMs with Exchange in a DAG configuration. The number of VMs, the workloads, the user count, the work type all play a part. Sage uses network resources very differently than Quickbooks, for example. And if a large amount of their workload is Office 365 or other cloud service and they have a limited upstream, NIC counts obviously wouldn't improve that at all. So there is no "easy" answer to that question.
0

Featured Post

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Exchange server is not supported in any cloud-hosted platform (other than Azure with Azure Premium Storage).
A procedure for exporting installed hotfix details of remote computers using powershell
This tutorial will walk an individual through locating and launching the BEUtility application and how to execute it on the appropriate database. Log onto the server running the Backup Exec database. In a larger environment, this would generally be …
This tutorial will show how to configure a new Backup Exec 2012 server and move an existing database to that server with the use of the BEUtility. Install Backup Exec 2012 on the new server and apply all of the latest hotfixes and service packs. The…

911 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

16 Experts available now in Live!

Get 1:1 Help Now