Jul 6, 2007"> 8"> gnt-backup"> Debian"> GNU"> GPL"> ]> 2007 Google Inc. &dhdate; &dhucpackage; &dhsection; ganeti 1.2 &dhpackage; ganeti instance import/export &dhpackage; command arguments... The &dhpackage; is used for importing and exporting instances and their configuration from a ganeti system. It is useful for backing instances up and also to migrate them between clusters. export -n node --noshutdown instance Exports an instance to the target node. All the instance data and its configuration will be exported under the /srv/ganeti/exports/instance directory on the target node. The --noshutdown option will create a snapshot disk of the instance without shutting it down first. While this is faster and involves no downtime, it cannot be guaranteed that the instance data will be in a consistent state in the exported dump. Example: # gnt-backup export -n node1.example.com instance3.example.com import -n node:secondary-node -s disksize --swap-size disksize -m memsize -b bridge -t diskless plain local_raid1 remote_raid1 drbd --src-node=source-node --src-dir=source-dir instance Imports a new instance from an export residing on source-node in source-dir. instance must be in DNS and resolve to a IP in the same network as the nodes in the cluster. The -s option specifies the disk size for the instance, in mebibytes (defaults to 20480MiB = 20GiB). You can also use one of the suffixes m, g or t to specificy the exact the units used; these suffixes map to mebibytes, gibibytes and tebibytes. The --swap-size option specifies the swap disk size (in mebibytes) for the instance (the one presented as /dev/sdb). The default is 4096MiB. As for the disk size, you can specify other suffixes. The -m option specifies the memory size for the instance, in mebibytes (defaults to 128 MiB). Again, you can use other suffixes (e.g. 2g). The -b option specifies the bridge to which the instance will be connected. (defaults to the cluster-wide default bridge specified at cluster intialization time). The -t options specifies the disk layout type for the instance. The available choices are: diskless This creates an instance with no disks. Its useful for testing only (or other special cases). plain Disk devices will be logical volumes. local_raid1 Disk devices will be md raid1 arrays over two local logical volumes. remote_raid1 Disk devices will be md raid1 arrays with one component (so it's not actually raid1): a drbd (0.7.x) device between the instance's primary node and the node given by the second value of the --node option. drbd Disk devices will be drbd (version 8.x) on top of lvm volumes. They are equivalent in functionality to remote_raid1, but are recommended for new instances (if you have drbd 8.x installed). The optional second value of the --node is used for the remote raid template type and specifies the remote node. If you do not want gnt-backup to wait for the disk mirror to be synced, use the --no-wait-for-sync option. Example: # gnt-backup import -t plain -s 30 -m 512 -n node1.example.com \ > --src-node=node2.example.com \ > --src-dir=/srv/ganeti/exports/instance3.example.com \ > instance3.example.com list --node=NODE Lists the exports currently available in the default directory in all the nodes of the current cluster, or optionally only a subset of them specified using the --node option (which can be used multiple times) Example: # gnt-backup list --nodes node1 --nodes node2 &footer;