def thaw_host(self, context):
    'UnFreeze management plane on this backend.\n\n        Basically puts the control/management plane back into\n        a normal state.  We should handle this in the scheduler,\n        however this is provided to let the driver know in case it\n        needs/wants to do something specific on the backend.\n\n        :param context: security context\n        '
    try:
        self.driver.thaw_backend(context)
    except exception.VolumeDriverException:
        LOG.error(_LE('Error encountered on Cinder backend during thaw operation, service will remain frozen.'))
        return False
    svc_host = vol_utils.extract_host(self.host, 'backend')
    service = objects.Service.get_by_args(context, svc_host, 'cinder-volume')
    service.disabled = False
    service.disabled_reason = ''
    service.save()
    LOG.info(_LI('Thawed backend successfully.'))
    return True
UnFreeze management plane on this backend.

Basically puts the control/management plane back into
a normal state.  We should handle this in the scheduler,
however this is provided to let the driver know in case it
needs/wants to do something specific on the backend.

:param context: security context
def thaw_host(self, context):
    'UnFreeze management plane on this backend.\n\n        Basically puts the control/management plane back into\n        a normal state.  We should handle this in the scheduler,\n        however this is provided to let the driver know in case it\n        needs/wants to do something specific on the backend.\n\n        :param context: security context\n        '
    try:
        self.driver.thaw_backend(context)
    except exception.VolumeDriverException:
        LOG.error(_LE('Error encountered on Cinder backend during thaw operation, service will remain frozen.'))
        return False
    svc_host = vol_utils.extract_host(self.host, 'backend')
    service = objects.Service.get_by_args(context, svc_host, 'cinder-volume')
    service.disabled = False
    service.disabled_reason = 
    service.save()
    LOG.info(_LI('Thawed backend successfully.'))
    return True