DifferentHostFilter

Schedule the instance on a different host from a set of instances. To take advantage of this filter, the requester must pass a scheduler hint, using different_host as the keyand a list of instance uuids as the value. This filter is the opposite of the SameHostFilter. Using the nova command-line tool, use the --hint flag. For example:

$ nova boot --image cedef40a-ed67-4d10-800e-17455edce175 --flavor 1 --hint different_host=[a0cf03a5-d921-4877-bb5c-86d26cf818e1,8c19174f-4220-44f0-824a-cd1eeef10287] server-1

With the API, use the os:scheduler_hints key. For example:

    {
    'server': {
        'name': 'server-1',
        'imageRef': 'cedef40a-ed67-4d10-800e-17455edce175',
        'flavorRef': '1'
    },
    'os:scheduler_hints': {
        'different_host': ['a0cf03a5-d921-4877-bb5c-86d26cf818e1',
                           '8c19174f-4220-44f0-824a-cd1eeef10287'],
    }
}