def get_device_number_from_device_name(self, device_name):
matches = self._phys_dev_name_regex.findall(device_name)
if matches:
return matches[0]
err_msg = _("Could not find device number for device: %s")
raise exceptions.DiskNotFound(err_msg % device_name)
def _get_disk_by_number(self, disk_number, msft_disk_cls=True):
if msft_disk_cls:
disk = self._conn_storage.Msft_Disk(Number=disk_number)
else:
disk = self._conn_cimv2.Win32_DiskDrive(Index=disk_number)
if not disk:
err_msg = _("Could not find the disk number %s")
raise exceptions.DiskNotFound(err_msg % disk_number)
return disk[0]
def _get_disks_by_unique_id(self, unique_id, unique_id_format):
# In some cases, multiple disks having the same unique id may be
# exposed to the OS. This may happen if there are multiple paths
# to the LUN and MPIO is not properly configured. This can be
# valuable information to the caller.
disks = self._conn_storage.Msft_Disk(UniqueId=unique_id,
UniqueIdFormat=unique_id_format)
if not disks:
err_msg = _("Could not find any disk having unique id "
"'%(unique_id)s' and unique id format "
"'%(unique_id_format)s'")
raise exceptions.DiskNotFound(
err_msg %
dict(unique_id=unique_id, unique_id_format=unique_id_format))
return disks
def _get_disk(self, disk_number):
disk = self._conn_storage.Msft_Disk(Number=disk_number)
if not disk:
err_msg = _("Could not find the disk number %s")
raise exceptions.DiskNotFound(err_msg % disk_number)
return disk[0]