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