vzmigrate − migrate a container between two OpenVZ servers
[-r|--remove-area yes|no] [--ssh=ssh_options] [--rsync=rsync_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) or online.
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 entering password.
-r, --remove-area yes | no
Whether to remove a container area on source HN for the successfully migrated container. Default is yes.
Additional options that will be passed to ssh while establishing connection to destination HN.
Additional options that will be passed to rsync(8). You may add options like -z to enable data compression if you are migrating over a slow link.
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.
Verbose mode. Causes vzmigrate to print debugging messages about its progress. Multiple -v options increase the verbosity. The maximum is 3.
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) 2001-2010, Parallels, Inc. Licensed under GNU GPL.