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Feb
12
Hyper-V: Set Up An Internal Network For Host/Guest File and Service Sharing
Posted by Amy Babinchak on 12 February 2015 01:18 PM

Here’s a quick and simple How-To for setting up network communication between a Hyper-V host, both Server and Windows 8/8.1, and any guests.

  1. Hyper-V Manager –> R.Click ServerName –> Virtual Switch Manager –> New –> INTERNAL.

     

    • Note the description for the internal vSwitch.

       

    • image
  2. Click APPLY and OK
  3. Assign the newly created vSwitch – Internal to the required VM(s)
    • image
  4. On the HOST: Start –> NCPA.CPL [Enter] –> Set an IPv4 IP Address
    • image
    • Use a different subnet for this network than anything else on the host’s NICs.
  5. On the Guest: Start –> NCPA.CPL [Enter] –> Set an IPv4 IP Address
    • image
    • Note the host and the guest are assigned an IP on the same subnet.
  6. On either the Host or the Guest open Windows Explorer
  7. \\IPv4Address\
  8. Authenticate

     

    1. To host: Either MachineName\Username or DomainName\Username

       

    2. To guest: MachineName\Username
  9. Copy and paste files and access services as expected
    • image

If there is a need to work with UNC paths, HTTPS and certificates, and more then make sure to set up a small VM running DNS and ADDS if needed. One could also put DHCP on that VM to make addressing simple.

Philip Elder
Microsoft Cluster MVP


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Oct
20
How vCPUs Interact With Physical CPUs – Resources
Posted by Philip Elder on 20 October 2014 02:28 PM

Original Published Here: MPECS Inc. Blog: How vCPUs Interact With Physical CPUs – Resources

Here are some excellent resources on how a hypervisor such as Hyper-V interacts with the CPU pipeline.

Essentially, having a bit of time while waiting for some things to complete I’ve done a bit of digging to figure out if the premise “All VM threads (vCPUs) must be processed in parallel” still applies to the CPU pipelines and architectures of today.

Check out the conversation I’ve been having with Brian Elhert on his blog with the videos as it seems that the premise no longer holds true.

There are other VM performance thoughts that we have had since day one that need to be tested or verified based on Brian’s responses.

In our experience the following can have an impact on a VM’s performance:

  • Assigning more vCPUs to a VM than physical cores (threads) available on one CPU

  • Assigning vCPU count to a VM as the number of physical cores (threads) on one CPU
  • Assigning enough vRAM to a VM to force its contents to be split between memory controllers

Hat Tip: @BrianEh (Brian Elhert)

Further reading on tuning Windows Server 2012 R2:

Philip Elder
Microsoft Cluster MVP
MPECS Inc.
Co-Author: SBS 2008 Blueprint Book

Chef de partie in the SMBKitchen ASP Project
Find out more at
Third Tier: Enterprise Solutions for Small Business


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Oct
16
2 Node 1 JBOD Hyper-V Cluster Connectivity Guide
Posted by Philip Elder on 16 October 2014 03:27 PM

Original Posted Here: MPECS Inc. Blog: 2 Node 1 JBOD Hyper-V Cluster Connectivity Guide

Okay, so just how do we wire up that cluster?

image

We connect two SAS cables from each HBA on each node to one expander on the JBOD.

image

We then connect two SAS cables from each HBA on each node to one expander on the JBOD. Note the left/right split between the cable sets to keep things simple and clean.

This gives us two redundant paths between the Hyper-V hosts if setting up an asymmetric cluster (2 nodes 1 JBOD) or redundant paths between SOFS nodes and the JBOD.

The following shows the setup for an Intel Server System R1208JP4OC 1U single socket server:

image

We always try to keep the cables plugged in identically on each node. So, in this case the bottom HBA is plugged into Expander 0 and the top HBA is plugged into Expander 1.

In a Scale-Out File Server cluster where we have three nodes and three JBODs we would be utilizing an LSI SAS HBA with 4 external ports (-16e). In that case we would cable up each node just as we did here between each JBOD giving us the left/right split.

Given the Intel JBOD2224S2DP’s three external ports per expander we would be limited to the three node setup unless we utilized our LSI SAS6160 SAS Switches to scale beyond three nodes and JBODs.

Philip Elder
Microsoft Cluster MVP
MPECS Inc.
Co-Author: SBS 2008 Blueprint Book

Chef de partie in the SMBKitchen ASP Project
Find out more at
Third Tier: Enterprise Solutions for Small Business


Read more »




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