Re: virsh: migration job: unexpectedly failed

Alex Jia <ajia@xxxxxxxxxx> · Tue, 12 Jun 2012 13:27:13 +0800



    On 06/12/2012 12:48 PM, Patrick Wilbur wrote:
    
      There now is KVM live migration with storage migration, which
        makes it possible to live migrate without shared storage. Is
        that what you're trying to do? If so, I might be able to help (I
        recently got that 
    
    You're talking about live block/storage migration, right? if so,
    shared storage isn't necessary, please refer to the following link:

     http://wiki.qemu.org/Features/LiveBlockMigration

    
    But I'm not sure it has been supported by qemu-kvm rpm on the RHEL,
    you probably require qemu-kvm-rhev installation.

    In addition, could you show your qemu-kvm or qemu-kvm-rhev version
    and relevant libvirtd.log? thanks.

    
    Alex 

    
      working, after having to work out a few tricky preparations).
      Pat Wilbur
      My website: http://pdub.net
        

        Our book: http://runningxen.com 
      On Jun 11, 2012 11:53 PM, "Alex Jia" <ajia@xxxxxxxxxx>
        wrote:

        
           On 06/08/2012 09:13 PM,
            Xing.x.Gao wrote:
            
              i am sorry,node1 is host1 ,it's my input error,
i don't use share storage ,and the debug log level outputs a lot in
the /var/log/libvirt/libvirtd.log on host1.example.com ,
the win7.img is a qcow2 img file ,and i copy it from
server.example.com(source) to node1.example.com(dest)

            
            It's a wrong method to copy guest image to target host, you
            require a NFS

            to share guest image at least, please refer to the following
            link:

            
            Shared storage example: NFS for a simple migration

            http://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/6/html/Virtualization_Administration_Guide/shared-storage-nfs-migration.html

            
            Live KVM migration with virsh

            http://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/6/html/Virtualization_Administration_Guide/sect-Virtualization-KVM_live_migration-Live_KVM_migration_with_virsh.html

            
            Please see "Live migration requirements" section:

            http://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/6/html/Virtualization_Administration_Guide/chap-Virtualization_Administration_Guide-KVM_live_migration.html#item-Virtualization-Live_migration_requirements-Migration_requirements

            
            Good Luck!

            Alex

          
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