76 lines
3.0 KiB
Python
76 lines
3.0 KiB
Python
#
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# Copyright(c) 2022 Intel Corporation
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# Copyright(c) 2024 Huawei Technologies Co., Ltd.
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# SPDX-License-Identifier: BSD-3-Clause
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#
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import pytest
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from storage_devices.disk import DiskType, DiskTypeSet, DiskTypeLowerThan
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from core.test_run import TestRun
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from api.cas.cache import CacheMode, casadm
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from type_def.size import Size, Unit
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from test_tools.fs_tools import Filesystem
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from .common import create_files_with_md5sums, compare_md5sums
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mount_point = "/mnt/test"
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@pytest.mark.require_disk("cache_1", DiskTypeSet([DiskType.optane, DiskType.nand]))
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@pytest.mark.require_disk("cache_2", DiskTypeSet([DiskType.optane, DiskType.nand]))
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@pytest.mark.require_disk("core_1", DiskTypeLowerThan("cache_1"))
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@pytest.mark.require_disk("cache_3", DiskTypeSet([DiskType.hdd]))
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def test_multilevel_cache_3():
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"""
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title:
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Test multilevel cache.
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description:
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CAS Linux is able to use 3-level cache in different cache mode and remove it gracefully.
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pass_criteria:
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- Succesfully created 3-level cache.
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- Succesfully mounted filesystem on CAS device.
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- md5 sums are correct.
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"""
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with TestRun.step("Prepare devices"):
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core_dev_1 = TestRun.disks["core_1"]
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cache_hdd = TestRun.disks["cache_3"]
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cache_hdd.create_partitions([Size(3.2, Unit.GibiByte)])
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cache_hdd = cache_hdd.partitions[0]
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cache_dev_1 = TestRun.disks["cache_1"]
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cache_dev_1.create_partitions([Size(3.2, Unit.GibiByte)])
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cache_dev_1 = cache_dev_1.partitions[0]
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cache_dev_2 = TestRun.disks["cache_2"]
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cache_dev_2.create_partitions([Size(3.2, Unit.GibiByte)])
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cache_dev_2 = cache_dev_2.partitions[0]
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with TestRun.step("Create cache in WT mode and add core to it"):
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cache_WT = casadm.start_cache(cache_dev=cache_dev_1, cache_mode=CacheMode.WT)
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core_WT = cache_WT.add_core(core_dev=core_dev_1)
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with TestRun.step("Create second layer cache in WB mode"):
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cache_WB = casadm.start_cache(cache_dev=cache_dev_2, cache_mode=CacheMode.WB)
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with TestRun.step("Add first CAS device by setting exported object as core to second layer"):
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core_WB = cache_WB.add_core(core_WT)
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with TestRun.step("Create third layer cache in WA mode"):
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cache_WA = casadm.start_cache(cache_dev=cache_hdd, cache_mode=CacheMode.WA)
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with TestRun.step("Add second CAS device by setting exported object as core to third layer"):
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core = cache_WA.add_core(core_WB)
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with TestRun.step("Create and mount filesystem on third CAS device"):
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core.create_filesystem(Filesystem.ext3, blocksize=int(Size(1, Unit.Blocks4096)))
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core.mount(mount_point)
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with TestRun.step("Create files and copy them to mounted directory"):
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md5_sums = create_files_with_md5sums(mount_point, 100)
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with TestRun.step(
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"""Compare md5 susms between original files, files on IntelCAS device
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and files copied from intelCAS device"""
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):
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compare_md5sums(md5_sums, mount_point, copy_to_tmp=True)
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