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KVM offline migration

This is a discussion on KVM offline migration within the OS/Desktop Virtualization forum, part of the Virtualization & Cloud Computing Forums category; I am using KVM in cents 5.6. I am trying to do offline migration between two machines. I have a ...


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Old 07-28-2011, 11:21 AM   #1 (permalink)
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Default KVM offline migration

I am using KVM in cents 5.6. I am trying to do offline migration between two machines. I have a common NFS server. I initially save the state of the running VM (on machine1) to a state file using :

/usr/libexec/qemu -m 1024 -hda image1.img (to start the vm) stop migrate "exec:gzip -c > state.gz"

It successfully saves the state. Now I can resume the vm on the same machine with :

/usr/libexec/qemu -m 1024 -hda image1.img -incoming "exec:gzip -c -d state.gz"

It works fine. But is I use the same command in machine 2, I get :

gzip: stdout: Broken pipe.

Either the vm doesn't give any output or it starts from scratch and not from the memory state. I dont know the mistake I am committing. It will be great if someone can give me some pointers, tips or help on this issue. Thanks a lot.

- Sethu
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