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The nova.volume.san Module

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The nova.volume.utils Module

Volume-related Utilities and helpers.

notify_about_volume_usage(context, volume, event_suffix, extra_usage_info=None, host=None)
notify_usage_exists(context, volume_ref, current_period=False)

Generates ‘exists’ notification for a volume for usage auditing purposes.

Generates usage for last completed period, unless ‘current_period’ is True.