replace_osd.py 文件源码

def get_device_number(osd_number):
    """
    This function will return a tuple of (major_number, minor_number)
    device number for the given osd.
    :param osd_number: int
    :rtype : (major_number,minor_number)
    """
    path = "/var/lib/ceph/osd/ceph-{}".format(osd_number)
    info = os.lstat(path)
    major_number = os.major(info.st_dev)
    minor_number = os.minor(info.st_dev)
    return major_number, minor_number