def test_get_lvm_info(self, mock_filter_lvm_info):
"""
make sure that the get lvm info functions make the right calls to
lvm._filter_lvm_info
"""
lvm.get_pvols_in_volgroup(self.vg_name)
mock_filter_lvm_info.assert_called_with('pvdisplay', 'vg_name',
'pv_name', self.vg_name)
lvm.get_lvols_in_volgroup(self.vg_name)
mock_filter_lvm_info.assert_called_with('lvdisplay', 'vg_name',
'lv_name', self.vg_name)
def shutdown_lvm(device):
"""
Shutdown specified lvm device.
"""
device = block.sys_block_path(device)
# lvm devices have a dm directory that containes a file 'name' containing
# '{volume group}-{logical volume}'. The volume can be freed using lvremove
name_file = os.path.join(device, 'dm', 'name')
lvm_name = util.load_file(name_file).strip()
(vg_name, lv_name) = lvm.split_lvm_name(lvm_name)
vg_lv_name = "%s/%s" % (vg_name, lv_name)
devname = "/dev/" + vg_lv_name
# wipe contents of the logical volume first
LOG.info('Wiping lvm logical volume: %s', devname)
block.quick_zero(devname, partitions=False)
# remove the logical volume
LOG.debug('using "lvremove" on %s', vg_lv_name)
util.subp(['lvremove', '--force', '--force', vg_lv_name])
# if that was the last lvol in the volgroup, get rid of volgroup
if len(lvm.get_lvols_in_volgroup(vg_name)) == 0:
pvols = lvm.get_pvols_in_volgroup(vg_name)
util.subp(['vgremove', '--force', '--force', vg_name], rcs=[0, 5])
# wipe the underlying physical volumes
for pv in pvols:
LOG.info('Wiping lvm physical volume: %s', pv)
block.quick_zero(pv, partitions=False)
# refresh lvmetad
lvm.lvm_scan()