You can migrate disks of your virtual servers to other data stores, which are allocated to the same compute resource or compute zone. Unlike VS migration – disk migration requires reboot of the VS (despite the template it is based on).
To migrate a disk:
On the screen that appears, select a target data store from a drop-down box.
|You can only migrate disks to data stores in data store zones assigned to your billing plan.|
Click Start Migrate.
|You cannot migrate a disk to a data store with less capacity than the disk size!|
If you move an 850GB disk between aggregates with 10GB actual usage, the 'dd' image of the local volume manager will take 850GB space, because the entire local volume manager is copied, including zero 'd space which may not be able to be recovered.