Windows Server 2012 Failover Cluster Virtual Fibre Channel Adapter Live Migration Error

I’ve got a multiple  node cluster running Windows Server 2012 with Brocade 415/815 4G/8G FC HBA’s connecting to a VX SAN. I am trying to get the virtual HBA’s working in Hyper-V Guest running Windows 2008 R2 (SQL Cluster). I first created 2 virtual SAN Switches one connected to each port on my physical HBA (each physical port connects to a separate fabric). I add two Virtual HBA’s in my Guest, one to each VSAN Switch. When I go to Zone the HBA’s I only see side A of the virtual HBA’s not both A and B. On each fabric I should see two (A and B) WWPN but I only see one, to solve this you must shut down the Guest OS and twist the address set name (copy Set Address A to  Set Address B  and Set Address B to Set address A) I can add disk and everything works, however when I go to Live migrate I get the following error due to side B not being zoned. Live migration of ‘Virtual Machine Win2012_01’ failed.

Virtual machine migration operation for ‘Win2012_01’ failed at migration destination ‘hv-cl07-c2’. (Virtual machine ID 2CE90D02-083C-4012-ACA1-BE8D35EFCA33)

‘Win2012_01’ Synthetic FibreChannel Port: Failed to finish reserving resources with Error ‘Unspecified error’ (0x80004005). (Virtual machine ID 2CE90D02-083C-4012-ACA1-BE8D35EFCA33)

‘Win2012_01’ Synthetic FibreChannel Port: Failed to finish reserving resources with Error ‘Unspecified error’ (0x80004005). (Virtual machine ID 2CE90D02-083C-4012-ACA1-BE8D35EFCA33)

To solve this problem, I have done the following:

  • Updated my drivers to the latest version (3.0.2.21)
  • Remember that the Virtual SAN path must be the same, for example when you create 2 paths then the VSAN A should always connect to FiberSwitch 1 and VSAN B should connect 2 Fberswitch 2. This is because when you try to live migrate the guest OS and the VSAN paths are different the fiberSwitch cannot build the connection.
  • My problem was however that I only had created one host on the SAN and configured all the 8 paths under one host, to resolve my problem I created one host for the address set A and one host for the address set B. So I have always one connected and one disconnected host on my SAN and when I am doing a Live migration then the both hosts are online

I hope that this will solve your problem to.

Best Regards,

Pouyan

 

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