The nova.virt.xenapi.volumeops Module

Management class for Storage-related functions (attach, detach, etc).

class VolumeOps(session)

Bases: object

Management class for Volume-related tasks

attach_volume(connection_info, instance_name, mountpoint, hotplug=True)

Attach volume storage to VM instance.

detach_all(vm_ref)

Detach any external nova/cinder volumes and purge the SRs.

detach_volume(connection_info, instance_name, mountpoint)

Detach volume storage to VM instance.

find_bad_volumes(vm_ref)

Find any volumes with their connection severed.

Certain VM operations (e.g. VM.start, VM.reboot, etc.) will not work when a VBD is present that points to a non-working volume. To work around this, we scan for non-working volumes and detach them before retrying a failed operation.