def filter_vendor_specific_devices(self, devices, vid_pid_tuple):
"""Returns only the items from the devices list that are of the specific type"""
from infi.storagemodel.base.gevent_wrapper import run_together
run_together(device.get_scsi_vendor_id_or_unknown_on_error
for device in devices)
return [
device for device in devices
if device.get_scsi_vendor_id_or_unknown_on_error() == vid_pid_tuple
]
def get_all_multipath_block_devices(self):
from infi.storagemodel.base.gevent_wrapper import run_together
from infi.devicemanager import DeviceManager
from infi.wmpio import WmiClient, get_multipath_devices
from functools import partial
device_manager = DeviceManager()
wmi_client = WmiClient()
physical_drives = set()
multipath_dict = get_multipath_devices(wmi_client)
policies_dict = LazyLoadBalancingInfomrationDict(wmi_client)
def _get_multipath_object(device_object):
prefix = u"%s_" % device_object._instance_id
for key in multipath_dict:
if key.startswith(prefix):
return multipath_dict[key]
return None
def _is_physical_drive(device_object):
if device_object.get_physical_drive_number() != -1:
physical_drives.add(device_object)
def _iter_disk_drives():
for disk_drive in device_manager.disk_drives:
if not is_disk_drive_managed_by_windows_mpio(disk_drive):
logger.debug("disk drive {} is not managed by mpio".format(
disk_drive))
continue
multipath_object = _get_multipath_object(disk_drive)
if multipath_object is None:
logger.error(
"no matching MPIO WMI instance found for disk drive {} (instance_id={!r})"
.format(disk_drive, disk_drive._instance_id))
continue
yield WindowsNativeMultipathBlockDevice(
disk_drive, multipath_object, policies_dict)
run_together(
partial(_is_physical_drive, drive)
for drive in _iter_disk_drives())
return list(physical_drives)
def get_all_multipath_block_devices(self):
from infi.storagemodel.base.gevent_wrapper import run_together
from infi.devicemanager import DeviceManager
from infi.wmpio import WmiClient, get_multipath_devices
from functools import partial
device_manager = DeviceManager()
wmi_client = WmiClient()
physical_drives = set()
multipath_dict = get_multipath_devices(wmi_client)
policies_dict = LazyLoadBalancingInfomrationDict(wmi_client)
def _get_multipath_object(device_object):
prefix = u"%s_" % device_object._instance_id
for key in multipath_dict:
if key.startswith(prefix):
return multipath_dict[key]
return None
def _is_physical_drive(device_object):
if device_object.get_physical_drive_number() != -1:
physical_drives.add(device_object)
def _iter_disk_drives():
for disk_drive in device_manager.disk_drives:
if not is_disk_drive_managed_by_windows_mpio(disk_drive):
logger.debug("disk drive {} is not managed by mpio".format(disk_drive))
continue
multipath_object = _get_multipath_object(disk_drive)
if multipath_object is None:
logger.error("no matching MPIO WMI instance found for disk drive {} (instance_id={!r})".format(disk_drive, disk_drive._instance_id))
continue
yield WindowsNativeMultipathBlockDevice(disk_drive, multipath_object, policies_dict)
run_together(partial(_is_physical_drive, drive) for drive in _iter_disk_drives())
return list(physical_drives)
def filter_vendor_specific_devices(self, devices, vid_pid_tuple):
"""Returns only the items from the devices list that are of the specific type"""
from infi.storagemodel.base.gevent_wrapper import run_together
run_together(device.get_scsi_vendor_id_or_unknown_on_error for device in devices)
return filter(lambda device: device.get_scsi_vendor_id_or_unknown_on_error() == vid_pid_tuple, devices)
