def _configure(self, dev, size, wwn, write_back):
self._check_self()
block_type = get_blockdev_type(dev)
if block_type is None: # a file
if os.path.exists(os.path.realpath(dev)) and not os.path.isfile(dev):
raise RTSLibError("Path not to a file or block device")
if size is None:
raise RTSLibError("Path is to a file, size needed")
self._control("fd_dev_name=%s,fd_dev_size=%d" % (dev, size))
else: # a block device
# size is ignored but we can't raise an exception because
# dump() saves it and thus restore() will call us with it.
if block_type != 0:
raise RTSLibError("Device is not a TYPE_DISK block device")
if is_dev_in_use(dev):
raise RTSLibError("Device %s is already in use" % dev)
self._control("fd_dev_name=%s" % dev)
if write_back:
self.set_attribute("emulate_write_cache", 1)
self._control("fd_buffered_io=%d" % write_back)
self._set_udev_path(dev)
self._enable()
super(FileIOStorageObject, self)._configure(wwn)
def _configure(self, dev, size, wwn, write_back):
self._check_self()
block_type = get_blockdev_type(dev)
if block_type is None: # a file
if os.path.exists(os.path.realpath(dev)) and not os.path.isfile(dev):
raise RTSLibError("Path not to a file or block device")
if size is None:
raise RTSLibError("Path is to a file, size needed")
self._control("fd_dev_name=%s,fd_dev_size=%d" % (dev, size))
else: # a block device
# size is ignored but we can't raise an exception because
# dump() saves it and thus restore() will call us with it.
if block_type != 0:
raise RTSLibError("Device is not a TYPE_DISK block device")
if is_dev_in_use(dev):
raise RTSLibError("Device %s is already in use" % dev)
self._control("fd_dev_name=%s" % dev)
if write_back:
self.set_attribute("emulate_write_cache", 1)
self._control("fd_buffered_io=%d" % write_back)
self._set_udev_path(dev)
self._enable()
super(FileIOStorageObject, self)._configure(wwn)
def _configure(self, dev, wwn, readonly):
self._check_self()
if get_blockdev_type(dev) != 0:
raise RTSLibError("Device %s is not a TYPE_DISK block device" % dev)
if is_dev_in_use(dev):
raise RTSLibError("Cannot configure StorageObject because "
+ "device %s is already in use" % dev)
self._set_udev_path(dev)
self._control("udev_path=%s" % dev)
self._control("readonly=%d" % readonly)
self._enable()
super(BlockStorageObject, self)._configure(wwn)
def _configure(self, dev, wwn, readonly):
self._check_self()
if get_blockdev_type(dev) != 0:
raise RTSLibError("Device %s is not a TYPE_DISK block device" % dev)
if is_dev_in_use(dev):
raise RTSLibError("Cannot configure StorageObject because "
+ "device %s is already in use" % dev)
self._set_udev_path(dev)
self._control("udev_path=%s" % dev)
self._control("readonly=%d" % readonly)
self._enable()
super(BlockStorageObject, self)._configure(wwn)
def _configure(self, dev, size, wwn, buffered_mode):
self._check_self()
rdev = os.path.realpath(dev)
if not os.path.isdir(os.path.dirname(rdev)):
raise RTSLibError("The dev parameter must be a path to a "
+ "file inside an existing directory, "
+ "not %s." % str(os.path.dirname(dev)))
if os.path.isdir(rdev):
raise RTSLibError("The dev parameter must be a path to a "
+ "file or block device not a directory:"
+ "%s." % dev)
block_type = get_block_type(rdev)
if block_type is None and not is_disk_partition(rdev):
if os.path.exists(rdev) and not os.path.isfile(dev):
raise RTSLibError("Device %s is neither a file, " % dev
+ "a disk partition or a block device.")
# It is a file
if size is None:
raise RTSLibError("The size parameter is mandatory "
+ "when using a file.")
size = convert_human_to_bytes(size)
self._control("fd_dev_name=%s,fd_dev_size=%d" % (dev, size))
else:
# it is a block device or a disk partition
if size is not None:
raise RTSLibError("You cannot specify a size for a "
+ "block device.")
if block_type != 0 and block_type is not None:
raise RTSLibError("Device %s is a block device, " % dev
+ "but not of TYPE_DISK.")
if is_dev_in_use(rdev):
raise RTSLibError("Cannot configure StorageObject "
+ "because device "
+ "%s is already in use." % dev)
if is_disk_partition(rdev):
size = get_disk_size(rdev)
print "fd_dev_name=%s,fd_dev_size=%d" % (dev, size)
self._control("fd_dev_name=%s,fd_dev_size=%d" % (dev, size))
else:
self._control("fd_dev_name=%s" % dev)
self._set_udev_path(dev)
if buffered_mode:
self._set_buffered_mode()
self._enable()
if wwn:
self.wwn = generate_wwn('unit_serial')
def _configure(self, dev, size, wwn, buffered_mode):
self._check_self()
rdev = os.path.realpath(dev)
if not os.path.isdir(os.path.dirname(rdev)):
raise RTSLibError("The dev parameter must be a path to a " +
"file inside an existing directory, " +
"not %s." % str(os.path.dirname(dev)))
if os.path.isdir(rdev):
raise RTSLibError("The dev parameter must be a path to a " +
"file or block device not a directory:" +
"%s." % dev)
block_type = get_block_type(rdev)
if block_type is None and not is_disk_partition(rdev):
if os.path.exists(rdev) and not os.path.isfile(dev):
raise RTSLibError("Device %s is neither a file, " % dev +
"a disk partition or a block device.")
# It is a file
if size is None:
raise RTSLibError("The size parameter is mandatory " +
"when using a file.")
size = convert_human_to_bytes(size)
self._control("fd_dev_name=%s,fd_dev_size=%d" % (dev, size))
else:
# it is a block device or a disk partition
if size is not None:
raise RTSLibError("You cannot specify a size for a " +
"block device.")
if block_type != 0 and block_type is not None:
raise RTSLibError("Device %s is a block device, " % dev +
"but not of TYPE_DISK.")
if is_dev_in_use(rdev):
raise RTSLibError("Cannot configure StorageObject " +
"because device " +
"%s is already in use." % dev)
if is_disk_partition(rdev):
size = get_disk_size(rdev)
self._control("fd_dev_name=%s,fd_dev_size=%d" % (dev, size))
else:
self._control("fd_dev_name=%s" % dev)
self._set_udev_path(dev)
if buffered_mode:
self._set_buffered_mode()
self._enable()
if wwn:
self.wwn = generate_wwn('unit_serial')
def _configure(self, dev, wwn, readonly, write_back):
self._check_self()
if get_blockdev_type(dev) != 0:
raise RTSLibError("Device is not a TYPE_DISK block device.")
if is_dev_in_use(dev):
raise RTSLibError("Cannot configure StorageObject because "
+ "device %s is already in use." % dev)
self._set_udev_path(dev)
self._control("udev_path=%s" % dev)
self._control("readonly=%d" % readonly)
self._enable()
if write_back:
self.set_attribute("emulate_write_cache", 1)
super(BlockStorageObject, self)._configure(wwn)
def _configure(self, dev, wwn, readonly, write_back):
self._check_self()
if get_blockdev_type(dev) != 0:
raise RTSLibError("Device is not a TYPE_DISK block device.")
if is_dev_in_use(dev):
raise RTSLibError("Cannot configure StorageObject because " +
"device %s is already in use." % dev)
self._set_udev_path(dev)
self._control("udev_path=%s" % dev)
self._control("readonly=%d" % readonly)
self._enable()
if write_back:
self.set_attribute("emulate_write_cache", 1)
super(BlockStorageObject, self)._configure(wwn)
def _configure(self, dev):
self._check_self()
# Use H:C:T:L format or preserve the path given by the user.
try:
(hostid, channelid, targetid, lunid) = \
convert_scsi_path_to_hctl(dev)
except TypeError:
try:
(hostid, channelid, targetid, lunid) = dev.split(':')
hostid = int(hostid)
channelid = int(channelid)
targetid = int(targetid)
lunid = int(lunid)
except ValueError:
raise RTSLibError("Cannot find SCSI device by "
+ "path, and dev "
+ "parameter not in H:C:T:L "
+ "format: %s" % dev)
else:
udev_path = convert_scsi_hctl_to_path(hostid,
channelid,
targetid,
lunid)
if not udev_path:
raise RTSLibError("SCSI device does not exist")
else:
udev_path = dev.strip()
if is_dev_in_use(udev_path):
raise RTSLibError("Cannot configure StorageObject because "
+ "device %s (SCSI %d:%d:%d:%d) "
% (udev_path, hostid, channelid,
targetid, lunid)
+ "is already in use")
self._control("scsi_host_id=%d," % hostid \
+ "scsi_channel_id=%d," % channelid \
+ "scsi_target_id=%d," % targetid \
+ "scsi_lun_id=%d" % lunid)
self._set_udev_path(udev_path)
self._enable()
super(PSCSIStorageObject, self)._configure()
def _configure(self, dev):
self._check_self()
# Use H:C:T:L format or preserve the path given by the user.
try:
(hostid, channelid, targetid, lunid) = \
convert_scsi_path_to_hctl(dev)
except TypeError:
try:
(hostid, channelid, targetid, lunid) = dev.split(':')
hostid = int(hostid)
channelid = int(channelid)
targetid = int(targetid)
lunid = int(lunid)
except ValueError:
raise RTSLibError("Cannot find SCSI device by "
+ "path, and dev "
+ "parameter not in H:C:T:L "
+ "format: %s" % dev)
else:
udev_path = convert_scsi_hctl_to_path(hostid,
channelid,
targetid,
lunid)
if not udev_path:
raise RTSLibError("SCSI device does not exist")
else:
udev_path = dev.strip()
if is_dev_in_use(udev_path):
raise RTSLibError("Cannot configure StorageObject because "
+ "device %s (SCSI %d:%d:%d:%d) "
% (udev_path, hostid, channelid,
targetid, lunid)
+ "is already in use")
self._control("scsi_host_id=%d," % hostid \
+ "scsi_channel_id=%d," % channelid \
+ "scsi_target_id=%d," % targetid \
+ "scsi_lun_id=%d" % lunid)
self._set_udev_path(udev_path)
self._enable()
super(PSCSIStorageObject, self)._configure()
def _configure(self, dev, wwn):
self._check_self()
if get_block_type(dev) != 0:
raise RTSLibError("Device is not a TYPE_DISK block device.")
if is_dev_in_use(dev):
raise RTSLibError("Cannot configure StorageObject because "
+ "device %s is already in use." % dev)
self._set_udev_path(dev)
if self._backstore.version.startswith("v3."):
# For 3.x, use the fd method
file_fd = os.open(dev, os.O_RDWR)
try:
self._write_fd(file_fd)
finally:
os.close(file_fd)
else:
# For 4.x and above, use the generic udev_path method
self._control("udev_path=%s" % dev)
self._enable()
if wwn:
self.wwn = generate_wwn('unit_serial')
def _configure(self, dev, wwn):
self._check_self()
if get_block_type(dev) != 0:
raise RTSLibError("Device is not a TYPE_DISK block device.")
if is_dev_in_use(dev):
raise RTSLibError("Cannot configure StorageObject because " +
"device %s is already in use." % dev)
self._set_udev_path(dev)
if self._backstore.version.startswith("v3."):
# For 3.x, use the fd method
file_fd = os.open(dev, os.O_RDWR)
try:
self._write_fd(file_fd)
finally:
os.close(file_fd)
else:
# For 4.x and above, use the generic udev_path method
self._control("udev_path=%s" % dev)
self._enable()
if wwn:
self.wwn = generate_wwn('unit_serial')
def _configure(self, dev):
self._check_self()
parent_hostid = self.backstore.index
legacy = self.backstore.legacy_mode
if legacy:
try:
(hostid, channelid, targetid, lunid) = \
convert_scsi_path_to_hctl(dev)
except TypeError:
try:
(channelid, targetid, lunid) = dev.split(':')
channelid = int(channelid)
targetid = int(targetid)
lunid = int(lunid)
except ValueError:
raise RTSLibError("Cannot find SCSI device by " +
"path, and dev parameter not " +
"in C:T:L format: %s." % dev)
else:
udev_path = convert_scsi_hctl_to_path(
parent_hostid, channelid, targetid, lunid)
if not udev_path:
raise RTSLibError("SCSI device does not exist.")
else:
if hostid != parent_hostid:
raise RTSLibError("The specified SCSI device does " +
"not belong to the backstore.")
else:
udev_path = dev.strip()
else:
# The Backstore is not in legacy mode.
# Use H:C:T:L format or preserve the path given by the user.
try:
(hostid, channelid, targetid, lunid) = \
convert_scsi_path_to_hctl(dev)
except TypeError:
try:
(hostid, channelid, targetid, lunid) = dev.split(':')
hostid = int(hostid)
channelid = int(channelid)
targetid = int(targetid)
lunid = int(lunid)
except ValueError:
raise RTSLibError("Cannot find SCSI device by " +
"path, and dev " +
"parameter not in H:C:T:L " +
"format: %s." % dev)
else:
udev_path = convert_scsi_hctl_to_path(
hostid, channelid, targetid, lunid)
if not udev_path:
raise RTSLibError("SCSI device does not exist.")
else:
udev_path = dev.strip()
if is_dev_in_use(udev_path):
raise RTSLibError("Cannot configure StorageObject because " +
"device %s (SCSI %d:%d:%d:%d) " %
(udev_path, hostid, channelid, targetid, lunid) +
"is already in use.")
if legacy:
self._control("scsi_channel_id=%d," % channelid \
+ "scsi_target_id=%d," % targetid \
+ "scsi_lun_id=%d" % lunid)
else:
self._control("scsi_host_id=%d," % hostid \
+ "scsi_channel_id=%d," % channelid \
+ "scsi_target_id=%d," % targetid \
+ "scsi_lun_id=%d" % lunid)
self._set_udev_path(udev_path)
self._enable()
def _configure(self, dev):
self._check_self()
parent_hostid = self.backstore.index
legacy = self.backstore.legacy_mode
if legacy:
try:
(hostid, channelid, targetid, lunid) = \
convert_scsi_path_to_hctl(dev)
except TypeError:
try:
(channelid, targetid, lunid) = dev.split(':')
channelid = int(channelid)
targetid = int(targetid)
lunid = int(lunid)
except ValueError:
raise RTSLibError("Cannot find SCSI device by "
+ "path, and dev parameter not "
+ "in C:T:L format: %s." % dev)
else:
udev_path = convert_scsi_hctl_to_path(parent_hostid,
channelid,
targetid,
lunid)
if not udev_path:
raise RTSLibError("SCSI device does not exist.")
else:
if hostid != parent_hostid:
raise RTSLibError("The specified SCSI device does "
+ "not belong to the backstore.")
else:
udev_path = dev.strip()
else:
# The Backstore is not in legacy mode.
# Use H:C:T:L format or preserve the path given by the user.
try:
(hostid, channelid, targetid, lunid) = \
convert_scsi_path_to_hctl(dev)
except TypeError:
try:
(hostid, channelid, targetid, lunid) = dev.split(':')
hostid = int(hostid)
channelid = int(channelid)
targetid = int(targetid)
lunid = int(lunid)
except ValueError:
raise RTSLibError("Cannot find SCSI device by "
+ "path, and dev "
+ "parameter not in H:C:T:L "
+ "format: %s." % dev)
else:
udev_path = convert_scsi_hctl_to_path(hostid,
channelid,
targetid,
lunid)
if not udev_path:
raise RTSLibError("SCSI device does not exist.")
else:
udev_path = dev.strip()
if is_dev_in_use(udev_path):
raise RTSLibError("Cannot configure StorageObject because "
+ "device %s (SCSI %d:%d:%d:%d) "
% (udev_path, hostid, channelid,
targetid, lunid)
+ "is already in use.")
if legacy:
self._control("scsi_channel_id=%d," % channelid \
+ "scsi_target_id=%d," % targetid \
+ "scsi_lun_id=%d" % lunid)
else:
self._control("scsi_host_id=%d," % hostid \
+ "scsi_channel_id=%d," % channelid \
+ "scsi_target_id=%d," % targetid \
+ "scsi_lun_id=%d" % lunid)
self._set_udev_path(udev_path)
self._enable()