in the following code form nova API (./nova/api/openstack/common.py) , you can see VM only have these status

1. ACTIVE
2. BUILD
3. SHUTOFF
4. VERIFY_RESIZE
5. PAUSED
6. SUSPEND
7. RESCUE
8. ERROR
9. DELETED
10. SOFT_DELETED
11. SHELVED_OFFLOADED

_STATE_MAP = {
    vm_states.ACTIVE: {
        'default': 'ACTIVE',
        task_states.REBOOTING: 'REBOOT',
        task_states.REBOOTING_HARD: 'HARD_REBOOT',
        task_states.UPDATING_PASSWORD: 'PASSWORD',
        task_states.REBUILDING: 'REBUILD',
        task_states.REBUILD_BLOCK_DEVICE_MAPPING: 'REBUILD',
        task_states.REBUILD_SPAWNING: 'REBUILD',
        task_states.MIGRATING: 'MIGRATING',
        task_states.RESIZE_PREP: 'RESIZE',
        task_states.RESIZE_MIGRATING: 'RESIZE',
        task_states.RESIZE_MIGRATED: 'RESIZE',
        task_states.RESIZE_FINISH: 'RESIZE',
    },
    vm_states.BUILDING: {
        'default': 'BUILD',
    },
    vm_states.STOPPED: {
        'default': 'SHUTOFF',
    },
    vm_states.RESIZED: {
        'default': 'VERIFY_RESIZE',
        # Note(maoy): the OS API spec 1.1 doesn't have CONFIRMING_RESIZE
        # state so we comment that out for future reference only.
        #task_states.RESIZE_CONFIRMING: 'CONFIRMING_RESIZE',
        task_states.RESIZE_REVERTING: 'REVERT_RESIZE',
    },
    vm_states.PAUSED: {
        'default': 'PAUSED',
    },
    vm_states.SUSPENDED: {
        'default': 'SUSPENDED',
    },
    vm_states.RESCUED: {
        'default': 'RESCUE',
    },
    vm_states.ERROR: {
        'default': 'ERROR',
    },
    vm_states.DELETED: {
        'default': 'DELETED',
    },
    vm_states.SOFT_DELETED: {
        'default': 'SOFT_DELETED',
    },
    vm_states.SHELVED: {
        'default': 'SHELVED',
    },
    vm_states.SHELVED_OFFLOADED: {
        'default': 'SHELVED_OFFLOADED',
    },
}

2013/12/01 by admin