def setup_workload(target: str,
runtime: timedelta,
io_depth=128,
verify=True,
block_size=int(Size(4, Unit.KibiByte)),
num_jobs=1,
method=ReadWrite.randrw,
io_engine=IoEngine.libaio):
fio_run = Fio().create_command()
fio_run.io_engine(io_engine)
fio_run.direct()
fio_run.time_based()
fio_run.run_time(runtime)
fio_run.io_depth(io_depth)
if verify:
fio_run.do_verify()
fio_run.verify(VerifyMethod.meta)
fio_run.verify_dump()
fio_run.read_write(method)
fio_run.target(target)
fio_run.block_size(block_size)
for i in range(num_jobs):
fio_run.add_job()
return fio_run
def fill_cache(target):
fio_run_fill = Fio().create_command()
fio_run_fill.io_engine(IoEngine.libaio)
fio_run_fill.direct()
fio_run_fill.read_write(ReadWrite.write)
fio_run_fill.io_depth(16)
fio_run_fill.block_size(Size(1, Unit.MebiByte))
fio_run_fill.target(target)
fio_run_fill.run()
def fio_workload(target: str, runtime: timedelta):
fio_run = Fio().create_command()
fio_run.io_engine(IoEngine.libaio)
fio_run.direct()
fio_run.time_based()
fio_run.run_time(runtime)
fio_run.io_depth(64)
fio_run.read_write(ReadWrite.readwrite)
fio_run.target(target)
fio_run.block_size(int(Size(4, Unit.KibiByte)))
return fio_run
def test_zero_metadata_dirty_data():
"""
title: Test for '--zero-metadata' and dirty data scenario.
description: |
Test for '--zero-metadata' with and without 'force' option if there are dirty data
on cache.
pass_criteria:
- Zeroing metadata without force failed on cache with dirty data.
- Zeroing metadata with force ran successfully on cache with dirty data.
- Cache started successfully after zeroing metadata on cache with dirty data.
"""
with TestRun.step("Prepare cache and core devices."):
cache_dev, core_disk, cache_disk = prepare_devices()
with TestRun.step("Start cache."):
cache = casadm.start_cache(cache_dev, CacheMode.WB, force=True)
core = cache.add_core(core_disk)
cache.set_cleaning_policy(CleaningPolicy.nop)
with TestRun.step("Run workload on CAS"):
fio_run_fill = Fio().create_command()
fio_run_fill.io_engine(IoEngine.libaio)
fio_run_fill.direct()
fio_run_fill.read_write(ReadWrite.randwrite)
fio_run_fill.io_depth(16)
fio_run_fill.block_size(Size(1, Unit.MebiByte))
fio_run_fill.target(core.path)
fio_run_fill.run_time(timedelta(seconds=5))
fio_run_fill.time_based()
fio_run_fill.run()
with TestRun.step("Stop cache without flushing dirty data."):
cache.stop(no_data_flush=True)
with TestRun.step("Start cache (expect to fail)."):
try:
cache = casadm.start_cache(cache_dev, CacheMode.WB)
except CmdException:
TestRun.LOGGER.info("Start cache failed as expected.")
with TestRun.step("Zeroing metadata on CAS device without force"):
try:
casadm.zero_metadata(cache_dev)
TestRun.LOGGER.error("Zeroing metadata without force should fail!")
except CmdException as e:
cli_messages.check_stderr_msg(e.output,
cli_messages.cache_dirty_data)
with TestRun.step("Zeroing metadata on cache device with force"):
try:
casadm.zero_metadata(cache_dev, force=True)
TestRun.LOGGER.info("Zeroing metadata with force successful!")
except CmdException as e:
TestRun.LOGGER.error(
f"Zeroing metadata with force should work for cache device!"
f"Error message: {e.output}")
with TestRun.step("Start cache without 'force' option."):
try:
cache = casadm.start_cache(cache_dev, CacheMode.WB)
TestRun.LOGGER.info("Cache started successfully.")
except CmdException:
TestRun.LOGGER.error("Start cache failed.")
