def probe(self):
""" Probe for any missing information about this device.
I'd like to avoid paying any attention to "Preferred Minor"
as it seems problematic.
"""
if not self.exists:
raise RaidArrayError("device has not been created", self.name)
try:
self.devices[0].setup()
except Exception:
return
info = raid.mdexamine(self.devices[0].path)
if self.level is None:
self.level = raid.raidLevel(info['level'])
def probe(self):
""" Probe for any missing information about this device.
I'd like to avoid paying any attention to "Preferred Minor"
as it seems problematic.
"""
if not self.exists:
raise RaidArrayError("device has not been created", self.name)
try:
self.devices[0].setup()
except Exception:
return
info = raid.mdexamine(self.devices[0].path)
if self.level is None:
self.level = raid.raidLevel(info['level'])
def __init__(self, name, level=None, major=None, minor=None, size=None,
memberDevices=None, totalDevices=None,
uuid=None, format=None, exists=None,
parents=None, sysfsPath=''):
""" Create a RaidArray instance.
Arguments:
name -- the device name (generally a device node's basename)
Keyword Arguments:
level -- the device's RAID level (a string, eg: '1' or 'raid1')
parents -- list of member devices (Device instances)
size -- the device's size (units/format TBD)
uuid -- the device's UUID
minor -- the device minor
sysfsPath -- sysfs device path
format -- a DeviceFormat instance
exists -- indicates whether this is an existing device
"""
Device.__init__(self, name, format=format, exists=exists,
major=major, minor=minor, size=size,
parents=parents, sysfsPath=sysfsPath)
self.level = level
if level == "container":
self._type = "mdcontainer"
elif level is not None:
self.level = raid.raidLevel(level)
# For new arrays check if we have enough members
if (not exists and parents and
len(parents) < raid.get_raid_min_members(self.level)):
raise ValueError, _("A RAID%(level)d set requires at least %(min_member)d member") % \
{"level":self.level, "min_member":raid.get_raid_min_members(self.level)}
self.uuid = uuid
self._totalDevices = numeric_type(totalDevices)
self._memberDevices = numeric_type(memberDevices)
self.sysfsPath = "/devices/virtual/block/%s" % name
self.chunkSize = 512.0 / 1024.0 # chunk size in MB
self.superBlockSize = 2.0 # superblock size in MB
self.createMetadataVer = "1.1"
# bitmaps are not meaningful on raid0 according to mdadm-3.0.3
self.createBitmap = self.level != 0
# For container members probe size now, as we cannot determine it
# when teared down.
if self.parents and self.parents[0].type == "mdcontainer":
self._size = self.currentSize
self._type = "mdbiosraidarray"
self.formatClass = get_device_format("mdmember")
if not self.formatClass:
raise RaidArrayError("cannot find class for 'mdmember'", self.name)
if self.exists and self.uuid:
# this is a hack to work around mdadm's insistence on giving
# really high minors to arrays it has no config entry for
open("/etc/mdadm.conf", "a").write("ARRAY %s UUID=%s\n"
% (self.path, self.uuid))
def __init__(self,
name,
level=None,
major=None,
minor=None,
size=None,
memberDevices=None,
totalDevices=None,
uuid=None,
format=None,
exists=None,
parents=None,
sysfsPath=''):
""" Create a RaidArray instance.
Arguments:
name -- the device name (generally a device node's basename)
Keyword Arguments:
level -- the device's RAID level (a string, eg: '1' or 'raid1')
parents -- list of member devices (Device instances)
size -- the device's size (units/format TBD)
uuid -- the device's UUID
minor -- the device minor
sysfsPath -- sysfs device path
format -- a DeviceFormat instance
exists -- indicates whether this is an existing device
"""
Device.__init__(self,
name,
format=format,
exists=exists,
major=major,
minor=minor,
size=size,
parents=parents,
sysfsPath=sysfsPath)
self.level = level
if level == "container":
self._type = "mdcontainer"
elif level is not None:
self.level = raid.raidLevel(level)
# For new arrays check if we have enough members
if (not exists and parents
and len(parents) < raid.get_raid_min_members(self.level)):
raise ValueError, _("A RAID%(level)d set requires at least %(min_member)d member") % \
{"level":self.level, "min_member":raid.get_raid_min_members(self.level)}
self.uuid = uuid
self._totalDevices = numeric_type(totalDevices)
self._memberDevices = numeric_type(memberDevices)
self.sysfsPath = "/devices/virtual/block/%s" % name
self.chunkSize = 512.0 / 1024.0 # chunk size in MB
self.superBlockSize = 2.0 # superblock size in MB
self.createMetadataVer = "1.1"
# bitmaps are not meaningful on raid0 according to mdadm-3.0.3
self.createBitmap = self.level != 0
# For container members probe size now, as we cannot determine it
# when teared down.
if self.parents and self.parents[0].type == "mdcontainer":
self._size = self.currentSize
self._type = "mdbiosraidarray"
self.formatClass = get_device_format("mdmember")
if not self.formatClass:
raise RaidArrayError("cannot find class for 'mdmember'", self.name)
if self.exists and self.uuid:
# this is a hack to work around mdadm's insistence on giving
# really high minors to arrays it has no config entry for
open("/etc/mdadm.conf",
"a").write("ARRAY %s UUID=%s\n" % (self.path, self.uuid))
