The cinder.volume.drivers.hitachi.hnas_nfs Module

Volume driver for HDS HNAS NFS storage.

class HDSNFSDriver(*args, **kwargs)

Bases: cinder.volume.drivers.nfs.NfsDriver

Base class for Hitachi NFS driver.

Executes commands relating to Volumes.

Version 1.0.0: Initial driver version Version 2.2.0: Added support to SSH authentication Version 3.0.0: Added pool aware scheduling Version 4.0.0: Added manage/unmanage features Version 4.1.0: Fixed XML parser checks on blank options

create_cloned_volume(volume, src_vref)

Creates a clone of the specified volume.

Parameters:

• volume – dictionary volume reference
• src_vref – dictionary src_vref reference

create_snapshot(snapshot)

Create a snapshot.

Parameters:snapshot – dictionary snapshot reference

create_volume(volume)

Creates a volume.

Parameters:volume – volume reference

create_volume_from_snapshot(volume, snapshot)

Creates a volume from a snapshot.

delete_snapshot(snapshot)

Deletes a snapshot.

Parameters:snapshot – dictionary snapshot reference

do_setup(context)

Perform internal driver setup.

extend_volume(volume, new_size)

Extend an existing volume.

Parameters:

• volume – dictionary volume reference
• new_size – int size in GB to extend

get_pool(volume)

get_volume_stats(refresh=False)

Get volume stats.

if ‘refresh’ is True, update the stats first.

manage_existing(volume, existing_vol_ref)

Manages an existing volume.

The specified Cinder volume is to be taken into Cinder management. The driver will verify its existence and then rename it to the new Cinder volume name. It is expected that the existing volume reference is an NFS share point and some [/path]/volume; e.g., 10.10.32.1:/openstack/vol_to_manage

or 10.10.32.1:/openstack/some_directory/vol_to_manage

Parameters:

• volume – cinder volume to manage
• existing_vol_ref – driver-specific information used to identify a volume

manage_existing_get_size(volume, existing_vol_ref)

Returns the size of volume to be managed by manage_existing.

When calculating the size, round up to the next GB.

Parameters:

• volume – cinder volume to manage
• existing_vol_ref – existing volume to take under management

unmanage(volume)

Removes the specified volume from Cinder management.

It does not delete the underlying backend storage object. A log entry will be made to notify the Admin that the volume is no longer being managed.

Parameters:volume – cinder volume to unmanage

factory_bend(drv_config)

Factory over-ride in self-tests.