def test_dm_id(zero_dm_device): # Resolve the dm link and get dm name of the device. device_path = "{}{}".format(DMPATH_PREFIX, zero_dm_device) real_path = os.path.realpath(device_path) device_name = real_path.split("/")[-1] dm_id = devicemapper.getDmId(zero_dm_device) assert device_name == dm_id # Test also devicemapper.resolveDevName() as it returns device_name # directly. resolved_name = devicemapper.resolveDevName(device_name) assert device_name == resolved_name # Or returns dm_id(). resolved_name = devicemapper.resolveDevName(zero_dm_device) assert device_name == resolved_name
def _resize_if_needed(guid): name = devicemapper.getDmId(guid) slaves = [(slave, getDeviceSize(slave)) for slave in devicemapper.getSlaves(name)] if len(slaves) == 0: log.warning("Map %r has no slaves" % guid) return False if len(set(size for slave, size in slaves)) != 1: raise Error("Map %r slaves size differ %s" % (guid, slaves)) map_size = getDeviceSize(name) slave_size = slaves[0][1] if map_size == slave_size: return False log.info("Resizing map %r (map_size=%d, slave_size=%d)", guid, map_size, slave_size) supervdsm.getProxy().resizeMap(name) return True
def _getpvblksize(pv): dev = devicemapper.getDmId(os.path.basename(pv)) return multipath.getDeviceBlockSizes(dev)
def test_is_dm_device(zero_dm_device): dm_id = devicemapper.getDmId(zero_dm_device) assert devicemapper.isDmDevice(dm_id)
def test_is_block_device(zero_dm_device): dm_id = devicemapper.getDmId(zero_dm_device) assert devicemapper.isBlockDevice(dm_id)
def test_is_virtual_device(zero_dm_device): dm_id = devicemapper.getDmId(zero_dm_device) assert devicemapper.isVirtualDevice(dm_id)
def test_dev_name(zero_dm_device): dm_id = devicemapper.getDmId(zero_dm_device) device_name = devicemapper.getDevName(dm_id) assert zero_dm_device == device_name