def __init__(self,
name,
parents,
size=None,
free=None,
peSize=None,
peCount=None,
peFree=None,
pvCount=None,
uuid=None,
exists=None,
sysfsPath=''):
""" Create a VolumeGroup instance.
Arguments:
name -- the device name (generally a device node's basename)
parents -- a list of physical volumes (Device)
Keyword Arguments:
peSize -- physical extent size (in MB)
exists -- indicates whether this is an existing device
sysfsPath -- sysfs device path
For existing VG's only:
size -- the VG's size (in MB)
free -- amount of free space in the VG
peFree -- number of free extents
peCount -- total number of extents
pvCount -- number of PVs in this VG
uuid -- the VG's UUID
"""
self.pvClass = get_device_format("lvmpv")
if not self.pvClass:
raise VolumeGroupError("cannot find 'lvmpv' class")
if isinstance(parents, list):
for dev in parents:
if not isinstance(dev.format, self.pvClass):
raise ValueError("constructor requires a list of PVs")
elif not isinstance(parents.format, self.pvClass):
raise ValueError("constructor requires a list of PVs")
DeviceMapper.__init__(self,
name,
parents=parents,
exists=exists,
sysfsPath=sysfsPath)
self.uuid = uuid
self.free = numeric_type(free)
self.peSize = numeric_type(peSize)
self.peCount = numeric_type(peCount)
self.peFree = numeric_type(peFree)
self.pvCount = numeric_type(pvCount)
self.lv_names = []
self.lv_uuids = []
self.lv_sizes = []
self.lv_attr = []
self.hasDuplicate = False
# circular references, here I come
self._lvs = []
# TODO: validate peSize if given
if not self.peSize:
self.peSize = 32.0 # MB
if not self.exists:
self.pvCount = len(self.parents)
def __init__(
self,
name,
parents,
size=None,
free=None,
peSize=None,
peCount=None,
peFree=None,
pvCount=None,
uuid=None,
exists=None,
sysfsPath="",
):
""" Create a VolumeGroup instance.
Arguments:
name -- the device name (generally a device node's basename)
parents -- a list of physical volumes (Device)
Keyword Arguments:
peSize -- physical extent size (in MB)
exists -- indicates whether this is an existing device
sysfsPath -- sysfs device path
For existing VG's only:
size -- the VG's size (in MB)
free -- amount of free space in the VG
peFree -- number of free extents
peCount -- total number of extents
pvCount -- number of PVs in this VG
uuid -- the VG's UUID
"""
self.pvClass = get_device_format("lvmpv")
if not self.pvClass:
raise VolumeGroupError("cannot find 'lvmpv' class")
if isinstance(parents, list):
for dev in parents:
if not isinstance(dev.format, self.pvClass):
raise ValueError("constructor requires a list of PVs")
elif not isinstance(parents.format, self.pvClass):
raise ValueError("constructor requires a list of PVs")
DeviceMapper.__init__(self, name, parents=parents, exists=exists, sysfsPath=sysfsPath)
self.uuid = uuid
self.free = numeric_type(free)
self.peSize = numeric_type(peSize)
self.peCount = numeric_type(peCount)
self.peFree = numeric_type(peFree)
self.pvCount = numeric_type(pvCount)
self.lv_names = []
self.lv_uuids = []
self.lv_sizes = []
self.lv_attr = []
self.hasDuplicate = False
# circular references, here I come
self._lvs = []
# TODO: validate peSize if given
if not self.peSize:
self.peSize = 32.0 # MB
if not self.exists:
self.pvCount = len(self.parents)
