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# Copyright 2015 Hewlett-Packard Development Company, L.P.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
import glob
import os
import stat
from oslo_concurrency import processutils
import testtools
from proliantutils.hpssa import constants
from proliantutils.hpssa import manager
from proliantutils.hpssa import objects
class HPSSATestCase(testtools.TestCase):
def tearDown(self):
super(HPSSATestCase, self).tearDown()
manager.delete_configuration()
def _get_server(self):
server = objects.Server()
return server
def _get_physical_drives(self, server, no_of_physical_drives_required,
size_gb_required):
for controller in server.controllers:
physical_drives = [x for x in controller.unassigned_physical_drives
if x.size_gb >= size_gb_required]
if len(physical_drives) >= no_of_physical_drives_required:
break
else:
self.fail("This test requires a controller with atleast %d "
"physical drives on the server" %
no_of_physical_drives_required)
return physical_drives[:no_of_physical_drives_required]
def _test_create_configuration_single_logical_drive(self, raid_level):
server = self._get_server()
size_gb = 100
manager.delete_configuration()
devices_before_create = set(glob.glob('/dev/sd[a-z]'))
minimum_disks_required = constants.RAID_LEVEL_MIN_DISKS[raid_level]
self._get_physical_drives(server, minimum_disks_required, size_gb)
raid_config = {
'logical_disks': [{'size_gb': size_gb, 'raid_level': raid_level}]}
current_config = manager.create_configuration(raid_config)
logical_disk = current_config['logical_disks'][0]
self.assertIsNotNone(logical_disk['root_device_hint'])
self.assertIsNotNone(logical_disk['volume_name'])
devices_after_create = set(glob.glob('/dev/sd[a-z]'))
new_device = devices_after_create - devices_before_create
# Make sure only one new device appeared now.
if len(new_device) != 1:
self.fail("More than 1 block devices were found after "
"creating RAID volume")
new_device_file = new_device.pop()
s = os.stat(new_device_file)
if not stat.S_ISBLK(s.st_mode):
self.fail("Newly created disk %s is not a block device"
% new_device_file)
# SCSI disk devices have major number 8
# https://www.kernel.org/doc/Documentation/devices.txt
# TODO(rameshg87: Need to check if any more assetions need to be
# done on the newly created disk device.
self.assertEqual(8, os.major(s.st_rdev))
stdout, stderr = processutils.execute("lsblk", "-Pio", "SIZE",
new_device_file)
# Output is like (two times printed):
# SIZE="8G"
# SIZE="8G"
created_disk_size = stdout.split("\n")[0].split('"')[1][:-1]
self.assertEqual(size_gb, int(created_disk_size))
stdout, stderr = processutils.execute("lsblk", "-Pio", "WWN",
new_device_file)
# Output is like:
# WWN="0x600508b1001cca7f"
# TODO(rameshg87: Check with hpssa team whether this can be
# assumed.
wwn = stdout.split("\n")[0].split('"')[1]
self.assertEqual(logical_disk['root_device_hint']['wwn'], wwn)
manager.delete_configuration()
def test_raid_0_single_drive(self):
self._test_create_configuration_single_logical_drive('0')
def test_raid_1_single_drive(self):
self._test_create_configuration_single_logical_drive('1')
def test_raid_5_single_drive(self):
self._test_create_configuration_single_logical_drive('5')
def test_raid_6_single_drive(self):
self._test_create_configuration_single_logical_drive('6')
def test_raid_10_single_drive(self):
self._test_create_configuration_single_logical_drive('1+0')
def test_raid_50_single_drive(self):
self._test_create_configuration_single_logical_drive('5+0')
def test_raid_60_single_drive(self):
self._test_create_configuration_single_logical_drive('6+0')
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