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How to use lv_take_thin_snapshot_from_external method in autotest

Best Python code snippet using autotest_python

lv_utils.py

Source:lv_utils.py

...382    # lvcreate -s --thinpool vg001/pool origin_volume --name mythinsnap383    result = utils.run(cmd)384    logging.info(result.stdout.rstrip())385@error.context_aware386def lv_take_thin_snapshot_from_external(vg_name, pool_name, lv_name, lv_snapshot_name):387    """388    Take a thinly provisioned snapshot of external logical volume.389    """390    error.context("Taking a thin snapshot from an external logical volume",391                  logging.debug)392    if not vg_check(vg_name):393        raise error.TestError("Volume group could not be found")394    if not lv_check(vg_name, pool_name):395        raise error.TestError("Snapshot's thin pool could not be found")396    if lv_check(vg_name, lv_snapshot_name):397        raise error.TestError("Snapshot already exists")398    if not lv_check(vg_name, lv_name):399        raise error.TestError("Snapshot's origin could not be found")400    cmd = ("lvcreate -s --thinpool %s/%s %s --name %s --ignoreactivationskip" %...

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