storage/formats/multipath.py

# 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)

1	# multipath.py
2	# multipath device formats
3	#
4	# Copyright (C) 2009 Red Hat, Inc.
5	#
6	# This program is free software; you can redistribute it and/or modify
7	# it under the terms of the GNU General Public License as published by
8	# the Free Software Foundation; either version 2 of the License, or
9	# (at your option) any later version.
10	#
11	# This program is distributed in the hope that it will be useful,
12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14	# GNU General Public License for more details.
15	#
16	# You should have received a copy of the GNU General Public License
17	# along with this program. If not, see <http://www.gnu.org/licenses/>.
18	#
19	# Any Red Hat trademarks that are incorporated in the source code or
20	# documentation are not subject to the GNU General Public License and
21	# may only be used or replicated with the express permission of
22	# Red Hat, Inc.
23	#
24	# Red Hat Author(s): Peter Jones <pjones@redhat.com>
25	#
26
27	from ..storage_log import log_method_call
28	from ..errors import *
29	from . import DeviceFormat, register_device_format
30
31	import gettext
32	_ = lambda x: gettext.ldgettext("anaconda", x)
33
34	import logging
35	log = logging.getLogger("storage")
36
37	class MultipathMember(DeviceFormat):
38	""" A multipath member disk. """
39	_type = "multipath_member"
40	_name = "multipath member device"
41	_udev_types = ["multipath_member"]
42	_formattable = False # can be formatted
43	_supported = True # is supported
44	_linuxNative = False # for clearpart
45	_packages = ["device-mapper-multipath"] # required packages
46	_resizable = False # can be resized
47	_bootable = False # can be used as boot
48	_maxSize = 0 # maximum size in MB
49	_minSize = 0 # minimum size in MB
50	_hidden = True # hide devices with this formatting?
51
52	def __init__(self, args, *kwargs):
53	""" Create a DeviceFormat instance.
54
55	Keyword Arguments:
56
57	device -- path to the underlying device
58	uuid -- this format's UUID
59	exists -- indicates whether this is an existing format
60
61	On initialization this format is like DeviceFormat
62
63	"""
64	log_method_call(self, args, *kwargs)
65	DeviceFormat.__init__(self, args, *kwargs)
66
67	# Initialize the attribute that will hold the block object.
68	self._member = None
69
70	def __str__(self):
71	s = DeviceFormat.__str__(self)
72	s += (" member = %(member)r" % {"member": self.member})
73	return s
74
75	def _getMember(self):
76	return self._member
77
78	def _setMember(self, member):
79	self._member = member
80
81	member = property(lambda s: s._getMember(),
82	lambda s,m: s._setMember(m))
83
84	def create(self, args, *kwargs):
85	log_method_call(self, device=self.device,
86	type=self.type, status=self.status)
87	raise MultipathMemberError("creation of multipath members is non-sense")
88
89	def destroy(self, args, *kwargs):
90	log_method_call(self, device=self.device,
91	type=self.type, status=self.status)
92	raise MultipathMemberError("destruction of multipath members is non-sense")
93
94	register_device_format(MultipathMember)
95