| Path : /usr/libexec/lsm.d/ |
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| Current File : //usr/libexec/lsm.d/local_sanity_check.py |
#!/usr/bin/env python2
# Copyright (C) 2018 Red Hat, Inc.
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or any later version.
#
# This library 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
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; If not, see <http://www.gnu.org/licenses/>.
#
# Author: Gris Ge <fge@redhat.com>
import unittest
import os
import lsm
from lsm import Volume, LocalDisk, Pool, System, LsmError, ErrorNumber, Disk
from lsm import Capabilities as Cap
def supported(cap, cap_list):
for c in cap_list:
if not cap.supported(c):
return False
return True
def warn(vol, blk_paths, msg):
print("\n[WARN]: Volume '%s(%s)', Disk '%s': %s" %
(vol.name, vol.id, " ".join(blk_paths), msg))
class LocalVol(object):
def __init__(self, vol, blk_paths, sys, cap):
self.vol = vol
self.blk_paths = blk_paths
self.sys = sys
self.cap = cap
class Failure(object):
OUTPUT_FORMAT = """
VOL_ID: "{VOL_ID}"
VOL_NAME: "{VOL_NAME}"
SYS_ID: "{SYS_ID}"
SYS_NAME: "{SYS_NAME}"
BLK_PATHS: "{BLK_PATHS}"
ISSUE: "{ISSUE}"
SUGGEST: "{SUGGEST}"
"""
def __init__(self, blk_paths, vol, sys, msg, suggest):
self.blk_paths = blk_paths
self.vol = vol
self.sys = sys
self.msg = msg
self.suggest = suggest
def gen_fail_msg(self):
return Failure.OUTPUT_FORMAT.format(
**{
"VOL_ID": self.vol.id,
"VOL_NAME": self.vol.name,
"SYS_ID": self.sys.id,
"SYS_NAME": self.sys.name,
"BLK_PATHS": " ".join(self.blk_paths),
"ISSUE": self.msg,
"SUGGEST": self.suggest,
})
class SanityCheck(unittest.TestCase):
def setUp(self):
uri = None
if os.getenv('LSMCLI_URI') is not None:
uri = os.getenv('LSMCLI_URI')
password = os.getenv('LSMCLI_PASSWORD')
if uri is None:
uri = "local://"
password = None
self.c = lsm.Client(uri, password)
self.syss = self.c.systems()
sys_hash = {}
cap_hash = {}
self.local_vols = []
for sys in self.syss:
sys_hash[sys.id] = sys
cap_hash[sys.id] = self.c.capabilities(sys)
for vol in self.c.volumes():
blk_paths = LocalDisk.vpd83_search(vol.vpd83)
if blk_paths:
self.local_vols.append(LocalVol(vol, blk_paths,
sys_hash[vol.system_id],
cap_hash[vol.system_id]))
print("\nDisk path of volume '%s(%s)': %s" %
(vol.name, vol.id, " ".join(blk_paths)))
if not self.local_vols:
self.skipTest("No local disk is managed by libstoragemgmt")
def tearDown(self):
self.c.close()
def _skip_current_test(self, messsage):
"""
If skipTest is supported(new in python 2.7), skip this test with
provided message.
Silently return if not supported.
"""
if hasattr(unittest.TestCase, 'skipTest') is True:
self.skipTest(messsage)
return
def _check_fail(self, fails):
spliter = '-' * 72 + "\n"
output = spliter.join(list(f.gen_fail_msg() for f in fails))
self.assertTrue(len(fails) == 0, "\n%s%s" % (spliter, output))
def test_volume_cache(self):
fails = []
flag_has_pass = False
for lv in self.local_vols:
flag_pass = True
sys = lv.sys
cap = lv.cap
vol = lv.vol
blk_paths = lv.blk_paths
if not supported(cap, [Cap.VOLUMES, Cap.VOLUME_CACHE_INFO]):
warn(vol, blk_paths, "Capabilities VOLUMES and "
"VOLUME_CACHE_INFO are not supported")
continue
cache_info = self.c.volume_cache_info(vol)
write_cache_policy = cache_info[0]
phy_disk_cache = cache_info[4]
if phy_disk_cache == Volume.PHYSICAL_DISK_CACHE_UNKNOWN:
warn(vol, blk_paths, "Unknown physical disk cache")
continue
if phy_disk_cache == Volume.PHYSICAL_DISK_CACHE_USE_DISK_SETTING:
flag_pass = False
fails.append(
Failure(blk_paths, vol, sys,
"Physical disk cache of volume is determined "
"by the disk vendor which is not suggested, "
"data loss might occurred on sudden power loss.",
"lsmcli vpdcu --vol %s --policy DISABLE" % vol.id))
elif phy_disk_cache == Volume.PHYSICAL_DISK_CACHE_ENABLED:
flag_pass = False
fails.append(
Failure(blk_paths, vol, sys,
"Physical disk cache of volume is enabled which "
"might(mostly) not be protected by "
"battery/capacitor, data loss might occurred on "
"sudden power loss.",
"lsmcli vpdcu --vol %s --policy DISABLE" % vol.id))
if write_cache_policy == Volume.WRITE_CACHE_POLICY_UNKNOWN:
warn(vol, blk_paths, "Unknown write cache policy")
continue
if write_cache_policy == Volume.WRITE_CACHE_POLICY_WRITE_BACK:
flag_pass = False
fails.append(
Failure(blk_paths, vol, sys,
"Write cache of volume is always enabled "
"regardless of battery/capacitor status, "
"data loss might occurred on sudden power loss.",
"lsmcli vwcpu --vol %s --policy AUTO" % vol.id))
if flag_pass:
flag_has_pass = True
self._check_fail(fails)
if not flag_has_pass:
self._skip_current_test("No local disks are capable for this test")
def test_pool_status(self):
fails = []
flag_has_pass = False
pool_hash = {}
for pool in self.c.pools():
pool_hash[pool.id] = pool
pmi_hash = {}
disk_hash = {}
try:
for disk in self.c.disks():
disk_hash[disk.id] = disk
except LsmError as lsm_err:
if lsm_err.code == ErrorNumber.NO_SUPPORT:
pass
else:
raise
for lv in self.local_vols:
sys = lv.sys
cap = lv.cap
vol = lv.vol
blk_paths = lv.blk_paths
pool = pool_hash[vol.pool_id]
if pool.status == Pool.STATUS_UNKNOWN:
warn(vol, blk_paths,
"Unknown pool status %d %s" % (pool.status,
pool.status_info))
if not pool.status & Pool.STATUS_OK:
if supported(cap, [Cap.POOL_MEMBER_INFO]):
# Check member failure
if pool.id not in pmi_hash:
pmi_hash[pool.id] = self.c.pool_member_info(pool)
pmi = pmi_hash[pool.id]
if pmi[1] == Pool.MEMBER_TYPE_DISK:
for disk_id in pmi[2]:
disk = disk_hash[disk_id]
if not disk.status & Disk.STATUS_OK:
fails.append(
Failure(blk_paths, vol, sys,
"Disk %s(%s) is not healthy: %d" %
(disk.name, disk_id, disk.status),
"Need investigation of output of"
"`lsmcli ld`"))
continue
fails.append(
Failure(blk_paths, vol, sys,
"Pool is not healthy: %d '%s'" % (
pool.status, pool.status_info),
"Need investigation of output of `lsmcli lp`"))
continue
flag_has_pass = True
self._check_fail(fails)
if not flag_has_pass:
self._skip_current_test("No local disks are capable for this test")
def test_system_status(self):
fails = []
flag_has_pass = False
for lv in self.local_vols:
sys = lv.sys
vol = lv.vol
blk_paths = lv.blk_paths
if sys.status == System.STATUS_UNKNOWN:
warn(vol, blk_paths,
"Unknown system status %d %s" % (sys.status,
sys.status_info))
if not sys.status & System.STATUS_OK:
fails.append(
Failure(blk_paths, vol, sys,
"System is not healthy: %d '%s'" % (
sys.status, sys.status_info),
"Need investigation of output of `lsmcli ls`"))
continue
flag_has_pass = True
self._check_fail(fails)
if not flag_has_pass:
self._skip_current_test("No local disks are capable for this test")
if __name__ == '__main__':
unittest.main(verbosity=2)