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# mdraid.py
# Device format classes for anaconda's storage configuration module.
#
# Copyright (C) 2009 Red Hat, Inc.
#
# This copyrighted material is made available to anyone wishing to use,
# modify, copy, or redistribute it subject to the terms and conditions of
# the GNU General Public License v.2, or (at your option) any later version.
# This program is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY expressed or implied, including the implied warranties of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
# Public License for more details. You should have received a copy of the
# GNU General Public License along with this program; if not, write to the
# Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
# 02110-1301, USA. Any Red Hat trademarks that are incorporated in the
# source code or documentation are not subject to the GNU General Public
# License and may only be used or replicated with the express permission of
# Red Hat, Inc.
#
# Red Hat Author(s): Dave Lehman <dlehman@redhat.com>
#
import os
from iutil import log_method_call
from flags import flags
from parted import PARTITION_RAID
from ..errors import *
from ..devicelibs import mdraid
from . import DeviceFormat, register_device_format
import gettext
_ = lambda x: gettext.ldgettext("anaconda", x)
import logging
log = logging.getLogger("storage")
class MDRaidMember(DeviceFormat):
""" An mdraid member disk. """
_type = "mdmember"
_name = "software RAID"
_udevTypes = ["linux_raid_member"]
partedFlag = PARTITION_RAID
_formattable = True # can be formatted
_supported = True # is supported
_linuxNative = True # for clearpart
_packages = ["mdadm"] # required packages
def __init__(self, *args, **kwargs):
""" Create a MDRaidMember instance.
Keyword Arguments:
device -- path to underlying device
uuid -- this member device's uuid
mdUuid -- the uuid of the array this device belongs to
exists -- indicates whether this is an existing format
"""
log_method_call(self, *args, **kwargs)
DeviceFormat.__init__(self, *args, **kwargs)
self.mdUuid = kwargs.get("mdUuid")
self.raidMinor = None
#self.probe()
def probe(self):
""" Probe for any missing information about this format. """
log_method_call(self, device=self.device,
type=self.type, status=self.status)
if not self.exists:
raise MDMemberError("format does not exist")
info = mdraid.mdexamine(self.device)
if self.uuid is None:
self.uuid = info['uuid']
if self.raidMinor is None:
self.raidMinor = info['mdMinor']
def destroy(self, *args, **kwargs):
if not self.exists:
raise MDMemberError("format does not exist")
if not os.access(self.device, os.W_OK):
raise MDMemberError("device path does not exist")
mdraid.mddestroy(self.device)
self.exists = False
@property
def status(self):
# XXX hack -- we don't have a nice way to see if the array is active
return False
def writeKS(self, f):
f.write("raid.%s" % self.mdUuid)
# nodmraid -> Wether to use BIOS RAID or not
# Note the anaconda cmdline has not been parsed yet when we're first imported,
# so we can not use flags.dmraid here
if flags.cmdline.has_key("iswmd") and not flags.cmdline.has_key("nodmraid"):
MDRaidMember._udevTypes.append("isw_raid_member")
register_device_format(MDRaidMember)
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