qubes-installer-qubes-os/storage/formats/multipath.py
2011-01-18 04:24:57 -05:00

96 lines
3.3 KiB
Python

# multipath.py
# multipath device formats
#
# Copyright (C) 2009 Red Hat, Inc.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty 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, see <http://www.gnu.org/licenses/>.
#
# 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): Peter Jones <pjones@redhat.com>
#
from ..storage_log import log_method_call
from ..errors import *
from . import DeviceFormat, register_device_format
import gettext
_ = lambda x: gettext.ldgettext("anaconda", x)
import logging
log = logging.getLogger("storage")
class MultipathMember(DeviceFormat):
""" A multipath member disk. """
_type = "multipath_member"
_name = "multipath member device"
_udev_types = ["multipath_member"]
_formattable = False # can be formatted
_supported = True # is supported
_linuxNative = False # for clearpart
_packages = ["device-mapper-multipath"] # required packages
_resizable = False # can be resized
_bootable = False # can be used as boot
_maxSize = 0 # maximum size in MB
_minSize = 0 # minimum size in MB
_hidden = True # hide devices with this formatting?
def __init__(self, *args, **kwargs):
""" Create a DeviceFormat instance.
Keyword Arguments:
device -- path to the underlying device
uuid -- this format's UUID
exists -- indicates whether this is an existing format
On initialization this format is like DeviceFormat
"""
log_method_call(self, *args, **kwargs)
DeviceFormat.__init__(self, *args, **kwargs)
# Initialize the attribute that will hold the block object.
self._member = None
def __str__(self):
s = DeviceFormat.__str__(self)
s += (" member = %(member)r" % {"member": self.member})
return s
def _getMember(self):
return self._member
def _setMember(self, member):
self._member = member
member = property(lambda s: s._getMember(),
lambda s,m: s._setMember(m))
def create(self, *args, **kwargs):
log_method_call(self, device=self.device,
type=self.type, status=self.status)
raise MultipathMemberError("creation of multipath members is non-sense")
def destroy(self, *args, **kwargs):
log_method_call(self, device=self.device,
type=self.type, status=self.status)
raise MultipathMemberError("destruction of multipath members is non-sense")
register_device_format(MultipathMember)