def test_vg_create_multiple_devices(tmp_storage, read_only):
dev_size = 10 * GiB
dev1 = tmp_storage.create_device(dev_size)
dev2 = tmp_storage.create_device(dev_size)
dev3 = tmp_storage.create_device(dev_size)
vg_name = str(uuid.uuid4())
lvm.set_read_only(False)
# TODO: should work also in read-only mode.
lvm.createVG(vg_name, [dev1, dev2, dev3], "initial-tag", 128)
lvm.set_read_only(read_only)
vg = lvm.getVG(vg_name)
assert vg.name == vg_name
assert sorted(vg.pv_name) == sorted((dev1, dev2, dev3))
# pvs is broken with read-only mode
# https://bugzilla.redhat.com/1809660.
lvm.set_read_only(False)
# The first pv (metadata pv) will have the 2 used metadata areas.
pv = lvm.getPV(dev1)
assert pv.name == dev1
assert pv.vg_name == vg_name
assert int(pv.dev_size) == dev_size
assert int(pv.mda_count) == 2
assert int(pv.mda_used_count) == 2
# The rest of the pvs will have 2 unused metadata areas.
for dev in dev2, dev3:
pv = lvm.getPV(dev)
assert pv.name == dev
assert pv.vg_name == vg_name
assert int(pv.dev_size) == dev_size
assert int(pv.mda_count) == 2
assert int(pv.mda_used_count) == 0
# TODO: should work also in read-only mode.
lvm.removeVG(vg_name)
lvm.set_read_only(read_only)
# We remove the VG
with pytest.raises(se.VolumeGroupDoesNotExist):
lvm.getVG(vg_name)
# pvs is broken with read-only mode
# https://bugzilla.redhat.com/1809660.
lvm.set_read_only(False)
# But keep the PVs, not sure why.
for dev in dev1, dev2, dev3:
pv = lvm.getPV(dev)
assert pv.name == dev
assert pv.vg_name == ""
def test_vg_create_multiple_devices(tmp_storage, read_only):
dev_size = 10 * 1024**3
dev1 = tmp_storage.create_device(dev_size)
dev2 = tmp_storage.create_device(dev_size)
dev3 = tmp_storage.create_device(dev_size)
vg_name = str(uuid.uuid4())
lvm.set_read_only(False)
# TODO: should work also in read-only mode.
lvm.createVG(vg_name, [dev1, dev2, dev3], "initial-tag", 128)
lvm.set_read_only(read_only)
vg = lvm.getVG(vg_name)
assert vg.name == vg_name
assert sorted(vg.pv_name) == sorted((dev1, dev2, dev3))
# The first pv (metadata pv) will have the 2 used metadata areas.
pv = lvm.getPV(dev1)
assert pv.name == dev1
assert pv.vg_name == vg_name
assert int(pv.dev_size) == dev_size
assert int(pv.mda_count) == 2
assert int(pv.mda_used_count) == 2
# The rest of the pvs will have 2 unused metadata areas.
for dev in dev2, dev3:
pv = lvm.getPV(dev)
assert pv.name == dev
assert pv.vg_name == vg_name
assert int(pv.dev_size) == dev_size
assert int(pv.mda_count) == 2
assert int(pv.mda_used_count) == 0
lvm.set_read_only(False)
# TODO: should work also in read-only mode.
lvm.removeVG(vg_name)
# TODO: check this also in read-only mode. vgs fail now after removing the
# vg, and this cause 10 retries that take 15 seconds.
# We remove the VG
with pytest.raises(se.VolumeGroupDoesNotExist):
lvm.getVG(vg_name)
# But keep the PVs, not sure why.
for dev in dev1, dev2, dev3:
pv = lvm.getPV(dev)
assert pv.name == dev
assert pv.vg_name == ""
def test_vg_create_multiple_devices(tmp_storage, read_only):
dev_size = 10 * 1024**3
dev1 = tmp_storage.create_device(dev_size)
dev2 = tmp_storage.create_device(dev_size)
dev3 = tmp_storage.create_device(dev_size)
vg_name = str(uuid.uuid4())
lvm.set_read_only(False)
# TODO: should work also in read-only mode.
lvm.createVG(vg_name, [dev1, dev2, dev3], "initial-tag", 128)
lvm.set_read_only(read_only)
vg = lvm.getVG(vg_name)
assert vg.name == vg_name
assert sorted(vg.pv_name) == sorted((dev1, dev2, dev3))
# The first pv (metadata pv) will have the 2 used metadata areas.
pv = lvm.getPV(dev1)
assert pv.name == dev1
assert pv.vg_name == vg_name
assert int(pv.dev_size) == dev_size
assert int(pv.mda_count) == 2
assert int(pv.mda_used_count) == 2
# The rest of the pvs will have 2 unused metadata areas.
for dev in dev2, dev3:
pv = lvm.getPV(dev)
assert pv.name == dev
assert pv.vg_name == vg_name
assert int(pv.dev_size) == dev_size
assert int(pv.mda_count) == 2
assert int(pv.mda_used_count) == 0
lvm.set_read_only(False)
# TODO: should work also in read-only mode.
lvm.removeVG(vg_name)
# TODO: check this also in read-only mode. vgs fail now after removing the
# vg, and this cause 10 retries that take 15 seconds.
# We remove the VG
with pytest.raises(se.VolumeGroupDoesNotExist):
lvm.getVG(vg_name)
# But keep the PVs, not sure why.
for dev in dev1, dev2, dev3:
pv = lvm.getPV(dev)
assert pv.name == dev
assert pv.vg_name == ""
def test_vg_create_remove_single_device(tmp_storage, read_only):
dev_size = 20 * GiB
dev = tmp_storage.create_device(dev_size)
vg_name = str(uuid.uuid4())
lvm.set_read_only(False)
# TODO: should work also in read-only mode.
lvm.createVG(vg_name, [dev], "initial-tag", 128)
lvm.set_read_only(read_only)
vg = lvm.getVG(vg_name)
assert vg.name == vg_name
assert vg.pv_name == (dev, )
assert vg.tags == ("initial-tag", )
assert int(vg.extent_size) == 128 * MiB
# pvs is broken with read-only mode
# https://bugzilla.redhat.com/1809660.
lvm.set_read_only(False)
pv = lvm.getPV(dev)
lvm.set_read_only(read_only)
assert pv.name == dev
assert pv.vg_name == vg_name
assert int(pv.dev_size) == dev_size
assert int(pv.mda_count) == 2
assert int(pv.mda_used_count) == 2
lvm.set_read_only(False)
# TODO: should work also in read-only mode.
lvm.removeVG(vg_name)
lvm.set_read_only(read_only)
# We remove the VG
with pytest.raises(se.VolumeGroupDoesNotExist):
lvm.getVG(vg_name)
# pvs is broken with read-only mode
# https://bugzilla.redhat.com/1809660.
lvm.set_read_only(False)
# But keep the PVs, not sure why.
pv = lvm.getPV(dev)
assert pv.name == dev
assert pv.vg_name == ""
def test_vg_extend_reduce(tmp_storage):
dev_size = 10 * 1024**3
dev1 = tmp_storage.create_device(dev_size)
dev2 = tmp_storage.create_device(dev_size)
dev3 = tmp_storage.create_device(dev_size)
vg_name = str(uuid.uuid4())
lvm.set_read_only(False)
lvm.createVG(vg_name, [dev1], "initial-tag", 128)
vg = lvm.getVG(vg_name)
assert vg.pv_name == (dev1, )
lvm.extendVG(vg_name, [dev2, dev3], force=False)
vg = lvm.getVG(vg_name)
assert sorted(vg.pv_name) == sorted((dev1, dev2, dev3))
# The first pv (metadata pv) will have the 2 used metadata areas.
pv = lvm.getPV(dev1)
assert pv.name == dev1
assert pv.vg_name == vg_name
assert int(pv.dev_size) == dev_size
assert int(pv.mda_count) == 2
assert int(pv.mda_used_count) == 2
# The rest of the pvs will have 2 unused metadata areas.
for dev in dev2, dev3:
pv = lvm.getPV(dev)
assert pv.name == dev
assert pv.vg_name == vg_name
assert int(pv.dev_size) == dev_size
assert int(pv.mda_count) == 2
assert int(pv.mda_used_count) == 0
lvm.reduceVG(vg_name, dev2)
vg = lvm.getVG(vg_name)
assert sorted(vg.pv_name) == sorted((dev1, dev3))
lvm.removeVG(vg_name)
with pytest.raises(se.VolumeGroupDoesNotExist):
lvm.getVG(vg_name)
def test_vg_extend_reduce(tmp_storage):
dev_size = 10 * 1024**3
dev1 = tmp_storage.create_device(dev_size)
dev2 = tmp_storage.create_device(dev_size)
dev3 = tmp_storage.create_device(dev_size)
vg_name = str(uuid.uuid4())
lvm.set_read_only(False)
lvm.createVG(vg_name, [dev1], "initial-tag", 128)
vg = lvm.getVG(vg_name)
assert vg.pv_name == (dev1,)
lvm.extendVG(vg_name, [dev2, dev3], force=False)
vg = lvm.getVG(vg_name)
assert sorted(vg.pv_name) == sorted((dev1, dev2, dev3))
# The first pv (metadata pv) will have the 2 used metadata areas.
pv = lvm.getPV(dev1)
assert pv.name == dev1
assert pv.vg_name == vg_name
assert int(pv.dev_size) == dev_size
assert int(pv.mda_count) == 2
assert int(pv.mda_used_count) == 2
# The rest of the pvs will have 2 unused metadata areas.
for dev in dev2, dev3:
pv = lvm.getPV(dev)
assert pv.name == dev
assert pv.vg_name == vg_name
assert int(pv.dev_size) == dev_size
assert int(pv.mda_count) == 2
assert int(pv.mda_used_count) == 0
lvm.reduceVG(vg_name, dev2)
vg = lvm.getVG(vg_name)
assert sorted(vg.pv_name) == sorted((dev1, dev3))
lvm.removeVG(vg_name)
with pytest.raises(se.VolumeGroupDoesNotExist):
lvm.getVG(vg_name)
def test_vg_create_remove_single_device(tmp_storage, read_only):
dev_size = 20 * 1024**3
dev = tmp_storage.create_device(dev_size)
vg_name = str(uuid.uuid4())
lvm.set_read_only(False)
# TODO: should work also in read-only mode.
lvm.createVG(vg_name, [dev], "initial-tag", 128)
lvm.set_read_only(read_only)
vg = lvm.getVG(vg_name)
assert vg.name == vg_name
assert vg.pv_name == (dev, )
assert vg.tags == ("initial-tag", )
assert int(vg.extent_size) == 128 * 1024**2
pv = lvm.getPV(dev)
assert pv.name == dev
assert pv.vg_name == vg_name
assert int(pv.dev_size) == dev_size
assert int(pv.mda_count) == 2
assert int(pv.mda_used_count) == 2
lvm.set_read_only(False)
# TODO: should work also in read-only mode.
lvm.removeVG(vg_name)
# TODO: check this also in read-only mode. vgs fail now after removing the
# vg, and this cause 10 retries that take 15 seconds.
# We remove the VG
with pytest.raises(se.VolumeGroupDoesNotExist):
lvm.getVG(vg_name)
# But keep the PVs, not sure why.
pv = lvm.getPV(dev)
assert pv.name == dev
assert pv.vg_name == ""
def test_vg_create_remove_single_device(tmp_storage, read_only):
dev_size = 20 * 1024**3
dev = tmp_storage.create_device(dev_size)
vg_name = str(uuid.uuid4())
lvm.set_read_only(False)
# TODO: should work also in read-only mode.
lvm.createVG(vg_name, [dev], "initial-tag", 128)
lvm.set_read_only(read_only)
vg = lvm.getVG(vg_name)
assert vg.name == vg_name
assert vg.pv_name == (dev,)
assert vg.tags == ("initial-tag",)
assert int(vg.extent_size) == 128 * 1024**2
pv = lvm.getPV(dev)
assert pv.name == dev
assert pv.vg_name == vg_name
assert int(pv.dev_size) == dev_size
assert int(pv.mda_count) == 2
assert int(pv.mda_used_count) == 2
lvm.set_read_only(False)
# TODO: should work also in read-only mode.
lvm.removeVG(vg_name)
# TODO: check this also in read-only mode. vgs fail now after removing the
# vg, and this cause 10 retries that take 15 seconds.
# We remove the VG
with pytest.raises(se.VolumeGroupDoesNotExist):
lvm.getVG(vg_name)
# But keep the PVs, not sure why.
pv = lvm.getPV(dev)
assert pv.name == dev
assert pv.vg_name == ""
def test_vg_extend_reduce(tmp_storage):
dev_size = 10 * GiB
dev1 = tmp_storage.create_device(dev_size)
dev2 = tmp_storage.create_device(dev_size)
dev3 = tmp_storage.create_device(dev_size)
vg_name = str(uuid.uuid4())
lvm.set_read_only(False)
lvm.createVG(vg_name, [dev1], "initial-tag", 128)
clear_stats()
vg = lvm.getVG(vg_name)
check_stats(hits=0, misses=1)
# Call getVG() again will get cache hit.
lvm.getVG(vg_name)
check_stats(hits=1, misses=1)
assert vg.pv_name == (dev1,)
lvm.extendVG(vg_name, [dev2, dev3], force=False)
clear_stats()
vg = lvm.getVG(vg_name)
# Calling getVG() after extendVG() does not use the cache.
# This happens because extendVG() invalidates the VG.
check_stats(hits=0, misses=1)
assert sorted(vg.pv_name) == sorted((dev1, dev2, dev3))
clear_stats()
# The first pv (metadata pv) will have the 2 used metadata areas.
pv = lvm.getPV(dev1)
check_stats(hits=0, misses=1)
assert pv.name == dev1
assert pv.vg_name == vg_name
assert int(pv.dev_size) == dev_size
assert int(pv.mda_count) == 2
assert int(pv.mda_used_count) == 2
# The rest of the pvs will have 2 unused metadata areas.
for dev in dev2, dev3:
clear_stats()
pv = lvm.getPV(dev)
check_stats(hits=0, misses=1)
assert pv.name == dev
assert pv.vg_name == vg_name
assert int(pv.dev_size) == dev_size
assert int(pv.mda_count) == 2
assert int(pv.mda_used_count) == 0
lvm.reduceVG(vg_name, dev2)
clear_stats()
vg = lvm.getVG(vg_name)
# Calling getVG() after reduceVG() does not use the cache.
# This happens because reduceVG() invalidates the VG.
check_stats(hits=0, misses=1)
assert sorted(vg.pv_name) == sorted((dev1, dev3))
lvm.removeVG(vg_name)
clear_stats()
with pytest.raises(se.VolumeGroupDoesNotExist):
lvm.getVG(vg_name)
check_stats(hits=0, misses=1)
