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Detaching and Moving Volumes
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14.4.4. Detaching and Moving Volumes
Note
This procedure is different from moving volumes from one storage pool to another as described in
Section 14.4.5, “VM Storage Migration”.
A volume can be detached from a guest VM and attached to another guest. Both CloudPlatform
administrators and users can detach volumes from VMs and move them to other VMs.
If the two VMs are in different clusters, and the volume is large, it may take several minutes for the
volume to be moved to the new VM.
If the destination VM is running in the OVM hypervisor, the VM must be stopped before a new volume
can be attached to it.
1. Log in to the CloudPlatform UI as a user or admin.
2. In the left navigation bar, click Storage, and choose Volumes in Select View. Alternatively, if you
know which VM the volume is attached to, you can click Instances, click the VM name, and click
View Volumes.
3.
Click the name of the volume you want to detach, then click the Detach Disk button.
4. To move the volume to another VM, follow the steps in Section 14.4.3, “Attaching a Volume”.
14.4.5. VM Storage Migration
Supported in XenServer, KVM, and VMware.
Note
This procedure is different from moving disk volumes from one VM to another as described in
Section 14.4.4, “Detaching and Moving Volumes”.
You can migrate a virtual machine’s root disk volume or any additional data disk volume from one
storage pool to another in the same zone.
You can use the storage migration feature to achieve some commonly desired administration goals,
such as balancing the load on storage pools and increasing the reliability of virtual machines by
moving them away from any storage pool that is experiencing issues.
On XenServer and VMware, live migration of VM storage is enabled through CloudPlatform support
for XenMotion and vMotion. Live storage migration allows VMs to be moved from one host to another,
where the VMs are not located on storage shared between the two hosts. It provides the option to
live migrate a VM’s disks along with the VM itself. It is possible to migrate a VM from one XenServer
resource pool / VMware cluster to another, or to migrate a VM whose disks are on local storage, or
even to migrate a VM’s disks from one storage repository to another, all while the VM is running.