def reduce(self, newSize):
"""Reduce a logical volume
'newSize' - new size in blocks
"""
self.log.info("Request to reduce LV %s of image %s in VG %s with "
"size = %s", self.volUUID, self.imgUUID, self.sdUUID,
newSize)
sizemb = (newSize + SECTORS_TO_MB - 1) / SECTORS_TO_MB
lvm.reduceLV(self.sdUUID, self.volUUID, sizemb)
def reduce(self, newSize):
"""Reduce a logical volume
'newSize' - new size in blocks
"""
self.log.info("Request to reduce LV %s of image %s in VG %s with "
"size = %s", self.volUUID, self.imgUUID, self.sdUUID,
newSize)
sizemb = (newSize + SECTORS_TO_MB - 1) / SECTORS_TO_MB
lvm.reduceLV(self.sdUUID, self.volUUID, sizemb)
def reduce(self, newSize, allowActive=False):
"""
Reduce the size of the logical volume.
Arguments:
newSize (int) - new size in blocks
allowActive (boolean) - indicates whether the LV is active
"""
self.log.info("Request to reduce LV %s of image %s in VG %s with "
"size = %s allowActive = %s", self.volUUID, self.imgUUID,
self.sdUUID, newSize, allowActive)
sizemb = utils.round(newSize, BLOCKS_TO_MB) // BLOCKS_TO_MB
lvm.reduceLV(self.sdUUID, self.volUUID, sizemb, force=allowActive)
def reduce(self, newSize, allowActive=False):
"""
Reduce the size of the logical volume.
Arguments:
newSize (int) - new size in blocks
allowActive (boolean) - indicates whether the LV is active
"""
self.log.info("Request to reduce LV %s of image %s in VG %s with "
"size = %s allowActive = %s", self.volUUID, self.imgUUID,
self.sdUUID, newSize, allowActive)
sizemb = utils.round(newSize, BLOCKS_TO_MB) // BLOCKS_TO_MB
lvm.reduceLV(self.sdUUID, self.volUUID, sizemb, force=allowActive)
def test_lv_extend_reduce(tmp_storage):
dev_size = 20 * 1024**3
dev = tmp_storage.create_device(dev_size)
vg_name = str(uuid.uuid4())
lv_name = str(uuid.uuid4())
lvm.set_read_only(False)
lvm.createVG(vg_name, [dev], "initial-tag", 128)
lvm.createLV(vg_name, lv_name, 1024)
lvm.extendLV(vg_name, lv_name, 2048)
lv = lvm.getLV(vg_name, lv_name)
assert int(lv.size) == 2 * 1024**3
# Reducing active LV requires force.
lvm.reduceLV(vg_name, lv_name, 1024, force=True)
lv = lvm.getLV(vg_name, lv_name)
assert int(lv.size) == 1 * 1024**3
def test_lv_extend_reduce(tmp_storage):
dev_size = 20 * GiB
dev = tmp_storage.create_device(dev_size)
vg_name = str(uuid.uuid4())
lv_name = str(uuid.uuid4())
lvm.set_read_only(False)
lvm.createVG(vg_name, [dev], "initial-tag", 128)
lvm.createLV(vg_name, lv_name, 1024)
lvm.extendLV(vg_name, lv_name, 2048)
lv = lvm.getLV(vg_name, lv_name)
assert int(lv.size) == 2 * GiB
# Extending LV to same does nothing.
lvm.extendLV(vg_name, lv_name, 2048)
lvm.invalidateVG(vg_name)
lv = lvm.getLV(vg_name, lv_name)
assert int(lv.size) == 2 * GiB
# Extending LV to smaller size does nothing.
lvm.extendLV(vg_name, lv_name, 1024)
lvm.invalidateVG(vg_name)
lv = lvm.getLV(vg_name, lv_name)
assert int(lv.size) == 2 * GiB
# Reducing active LV requires force.
lvm.reduceLV(vg_name, lv_name, 1024, force=True)
lv = lvm.getLV(vg_name, lv_name)
assert int(lv.size) == 1 * GiB
