vzmigrate - utility for container migration between hardware nodes.
vzmigrate [-r|--remove-area yes|no] [--ssh=ssh_options] [--keep-dst]
[--online] [-v] destination_address CTID
This utility is used to migrate a container from one (source) Hardware
Node (HN) to another (destination) HN. The utility can migrate either
stopped or running container. For a stopped container, simple CT
private area transfer is performed (rsync(1) is used for file
transfer). For running containers, migration may be offline (default)
This program uses ssh as a transport layer. You will need to put ssh
public key to destination node and be able to connect to node without
-r, --remove-area yes|no
Whether to remove a container area on source HN for the
successfully migrated container.
Additional options that will be passed to ssh while establishing
connection to destination HN. You may add options like -c
blowfish or the like.
Do not clean synced destination container private area in case
of some error. It makes sense to use this option on big
container migration to avoid syncing container private area
again in case some error (on container stop for example) occurs
during first migration attempt.
Perform online (zero-downtime) migration: during the migration
the container hangs for a while and after the migration it
continues working as though nothing has happened.
-v Verbose mode. Causes vzmigrate to print debugging messages about
Migration of CT #101 to 192.168.1.130 with downtime:
vzmigrate 192.168.1.130 101
Online migration of CT #102 to 192.168.1.130:
vzmigrate --online 192.168.1.130 102
Command completed successfully.
Bad command line options.
Container is stopped.
Can’t connect to destination (source) HN.
Container private area copying/moving failed.
Can’t start or restore destination CT.
Can’t stop or checkpoint source CT.
Container already exists on destination HN.
Container does not exists on source HN.
You attempt to migrate CT which IP address(es) are already in
use on the destination node.
Operation with CT quota failed.
Copyright (C) 2001-2008, Parallels, Inc. Licensed under GNU GPL.