Virtual Machine Replication

 

First, create the data volume and swap volume of the VM:

#Lvcreate-l 128 M-N newvm-swap xenvg
#Lvcreate-L 4G-N newvm xenvg

Use virt-clone replication:

#Virt-clone-O testvm-N newvm-F/dev/xenvg/newvm-swap
Cloning testvm-disk | 4.0 GB 0:39
Cloning testvm-swap | 128 MB

Clone 'newvm 'Created successfully.

#XM list newvm
Name ID mem vcpus state time (s)
Newvm 512 2 0.0

Of course, the preceding steps can also be completed through DD:

# Dd If =/dev/xenvg/testvm of =/dev/xenvg/newvm
# Dd If =/dev/xenvg/testvm-swap of =/dev/xenvg/newvm-swap
# Cp/etc/xen/testvm/etc/xen/newvm
# Sed-I's/testvm/newvm/G'/etc/xen/newvm
# XM new/etc/xen/newvm