Synnefo » snf-ganeti

  def HasAnyDiskOfType(self, dev_type):

    """Check if in there is at disk of the given type in the configuration.

    @type dev_type: L{constants.LDS_BLOCK}

    @param dev_type: the type to look for

    @rtype: boolean

    @return: boolean indicating if a disk of the given type was found or not

    """

    for instance in self.instances.values():

      for disk in instance.disks:

        if disk.IsBasedOnDiskType(dev_type):

          return True

    return False

  def IsBasedOnDiskType(self, dev_type):

    """Check if the disk or its children are based on the given type.

    @type dev_type: L{constants.LDS_BLOCK}

    @param dev_type: the type to look for

    @rtype: boolean

    @return: boolean indicating if a device of the given type was found or not

    """

    if self.children:

      for child in self.children:

        if child.IsBasedOnDiskType(dev_type):

          return True

    return self.dev_type == dev_type