Question

HYPER-V R2 LIVE MIGRATION, QUICK MIGRATION Fails

Asked by: jkeegan123

I have a (2) node cluster setup using Windows 2008 R2 x64 Enterprise.

This cluster is setup with (2) NICs on each server, (1) NIC dedicated to production traffic (10.0.1.0/24), and (1) NIC dedicated to SAN traffic (172.16.20.0/24).

The SAN has (1) 500GB LUN setup for VM storage (VHDs, configs, etc...), and (1) 10GB LUN setup for Quorum.

Before cluster setup, Hyper-V role was added to each Windows 2008 R2 server and verified as working.  Hyper-V Virtual networks were also configured on each server using the default configuration and pinning that configuration to the PRODUCTION NIC and not to the SAN NIC.

The cluster passes verification and is setup as a simple cluster.  No services are added, and shared cluster storage is enabled (new feature for Hyper-V R2).  The clusters VMs will be stored here.

Hyper-V is made highly available using the failover cluster admin, and both nodes recognize each other.  The cluster converges fine, and communicates well.

After all of this was setup, we imported a VM into the Hyper-V R2 server, and made sure that it worked correctly.  We then began testing LIVE MIGRATIONS, which would fail instantly with:

'Virtual Machine SERVER' live migration did not succeed at the destination.

Configuration setup for live migration failed on the destination node. Make sure that name of the virtual network is the same on the source and destination nodes, and try the live migration again

and

Virtual Machine Configuration SERVER' failed to create the virtual network switch ports for the virtual machine. Check the settings of the virtual machine.

Followed by error code 32, details are:
________________________________________
Failed to connect NIC '1CC9594D-0902-4C68-9928-17A852007737--0' to port '' on switch 'SWITCH-SM-5E878167-0C71-46FB-A869-A5294BC2377', status = C000003A.


After we try to do a QUICK MIGRATION, the other cluster node DOES pick up ownership of the Hyper-V VM, but when the other node attempts to start the VM we get the following error (again, 21502):
________________________________________
'Virtual Machine SERVER' failed to start.

'SERVER' failed to restore. (Virtual machine ID 1CC9594D-0902-4C68-9928-17A852007737)

'SERVER' Microsoft Emulated Ethernet Port (Instance ID {718032DA-6EFB-4EF4-8152-9A2FBDA945BF}): Failed to restore with Error 'The system cannot find the path specified.' (0x80070003). (Virtual machine ID 1CC9594D-0902-4C68-9928-17A852007737)

'SERVER' The switch port connection for "Ethernet Port" (1CC9594D-0902-4C68-9928-17A852007737--0) is unsupported.

Any help would be appreciated as this is preventing LIVE MIGRATION and FAILOVER CLUSTERING on what appears to be a perfectly functioning Cluster.

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Asked On
2009-09-11 at 21:09:09ID24726436
Tags

Hyper-V

,

Windows 2008 R2

,

Windows Virtual Server

,

Hyper-V R2

Topics

Microsoft Virtual Server

,

Hyper-V

,

Windows Server 2008

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Comments
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Answers

 

by: plimpiasPosted on 2009-09-12 at 12:19:01ID: 25317549

The named of the virtual network adapters must be the same, I think this may be your problem

 

by: jkeegan123Posted on 2009-09-15 at 06:26:40ID: 31627854

That was exactly the issue...the virtual networks were configured as default (the wizard named the interface itself).  One of the servers named the virtual network "VIRTUAL NETWORK CONNECTION" and the other server named the virtual network "VIRTUAL NETWORK CONNECTION 2".

I found it disappointing that the cluster validation wizard missed this when I made the Hyper-V nodes highly available, AND that Microsoft Professional support (incident based) missed this diagnosis as well.

The cluster is now highly available...I hope this thread helps others avoid this issue.

 

by: frukeusPosted on 2010-10-07 at 22:02:46ID: 33857290

Can you elaborate on where this virtual network connection is found?

I have the same problem and I thought that I had changed the names to be identical. But Live Migration is still failing with the same error.
Is it under Hyper-V Manager > Virtual Network Manager > Virtual Network Properties > Name?

 

by: jkeegan123Posted on 2010-10-08 at 14:41:45ID: 33864271

Yes virtual network properties.  Each hyper-v node must have the same Virtual Network names.

If you have multiple NICs (if you want performance to be decent, you need to), each dedicated NIC must be associated with a "virtual network".  Let's say you have (2) broadcom dual cards in (2) Hyper-V hosts, and on each of these hosts these NICs are named "Broadcom #1", "Broadcom #2".  In the virtual switch adapter of network manager in WIndows (not Hyper-V), each NIC must be either associated with the Virtual switch (to be shared) or NOT associated with the virtual switch (to be dedicated to a specific VM).  If you have (2) VMs and you want them to live-migrate, you should:
1.  Have their NICs NOT associated with the virtual switch adapter (in windows)
2.  Create a virtual network in Hyper-V manager for each VM named appropriately (i.e. EXCH-VM)
3.  Associate that virtual network with the appropriate NIC (on both hosts)
4.  Set that VM to use the apprpriate virtual network

If the virtual networks are named correctly (the same) and connected to the same switches, your live migration will work perfectly.  Feel free to email me if you can't get this straight, joe at ctny.net

 

by: frukeusPosted on 2010-10-11 at 19:29:09ID: 33881160

Thanks for your reply! I've managed to fix my problem. My virtual network was renamed from the HyperV Manager and it is not cluser aware.

It requires the VM settings to be updated by going into Failover Cluster Manager > VM > More Actions > Refresh Virtual Machine Configuration.

20120131-EE-VQP-002

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