Create, delete, attach, and detach volumes.
Create, list, and delete volume snapshots.
Create a volume from a snapshot.
Copy an image to a volume.
Copy a volume to an image.
Clone a volume.
Extend a volume.
Get volume statistics.
Migrate a volume with back-end assistance.
Retype a volume.
When you use back-end assisted volume migration, both source and destination clusters must be in the same HP LeftHand/StoreVirtual management group. The HP LeftHand/StoreVirtual array will use native LeftHand APIs to migrate the volume. The volume cannot be attached or have snapshots to migrate.
                Volume type support for the driver includes the ability to set
                the following capabilities in the OpenStack Cinder API
                cinder.api.contrib.types_extra_specs
                volume type extra specs extension module.
            
hplh:provisioninghplh:aohplh:data_pl
                To work with the default filter scheduler, the key-value pairs
                are case-sensitive and scoped with
                'hplh:'.
                For information about how to set the key-value pairs and
                associate them with a volume type, run the following
                command:
            
$ cinder help type-key
The following keys require the HP LeftHand/StoreVirtual storage array be configured for
- hplh:ao
 The HP LeftHand/StoreVirtual storage array must be configured for Adaptive Optimization.
- hplh:data_pl
 The HP LeftHand/StoreVirtual storage array must be able to support the Data Protection level specified by the extra spec.
If volume types are not used or a particular key is not set for a volume type, the following defaults are used:
- hplh:provisioning
 Defaults to
thinprovisioning, the valid values are,thinandfull- hplh:ao
 Defaults to
true, the valid values are,trueandfalse.- hplh:data_pl
 Defaults to
r-0, Network RAID-0 (None), the valid values are,r-0, Network RAID-0 (None)r-5, Network RAID-5 (Single Parity)r-10-2, Network RAID-10 (2-Way Mirror)r-10-3, Network RAID-10 (3-Way Mirror)r-10-4, Network RAID-10 (4-Way Mirror)r-6, Network RAID-6 (Dual Parity),

