Vzdump is a tool to backup and restore OpenVZ container. It is easy and flexible to use, but VZdump is not included in the openvz repository for CentOS. If you need to use vzdump, you have to download its source and compile it yourself.
How to install VZdump
Running command as following
rpm -ivh http://pkgs.repoforge.org/rpmforge-release/rpmforge-release-0.5.2-2.el6.rf.i686.rpm
wget http://download.openvz.org/contrib/utils/vzdump/vzdump-1.2-4.noarch.rpm
yum install cstream perl-LockFile-Simple
rpm -ivh vzdump-1.2-4.noarch.rpm
How to backup OpenVZ container
In example the container has ID 101 and to backup, type command
vzdump --compress --suspend 101
Or backup all container
vzdump --compress --suspend --all
How to restore OpenVZ container
In example restore the container has ID 102
vzrestore /vz/dump/vzdump-openvz-101-2014_03_27.tgz 102
And if success, the screen look likes
INFO: restore openvz backup ‘/vz/dump/vzdump-openvz-101-2014_03_27.tgz’ using ID 102
INFO: extracting archive ‘/vz/dump/vzdump-openvz-101-2014_03_27.tgz’
INFO: Total bytes read: 346787840 (331MiB, 70MiB/s)
INFO: extracting configuration to ‘/etc/vz/conf/102.conf’
INFO: restore openvz backup ‘/vz/dump/vzdump-openvz-101-2014_03_27.tgz’ successful
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