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File Name : 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)

Name	Type	Size	Owner/Group	Permission	Last Modified	Actions
.	dir	-	root/root	0755	2021-03-24 01:08:38
..	dir	-	root/root	0755	2025-09-25 10:09:52
find_unused_lun.py	text/x-python	5 KB	root/root	0755	2021-03-16 03:26:39
find_unused_lun.pyc	application/octet-stream	4.82 KB	root/root	0644	2021-03-16 03:26:47
find_unused_lun.pyo	application/octet-stream	4.82 KB	root/root	0644	2021-03-16 03:26:47
local_sanity_check.py	text/x-python	9.72 KB	root/root	0755	2021-03-16 03:26:39
local_sanity_check.pyc	application/octet-stream	8.47 KB	root/root	0644	2021-03-16 03:26:47
local_sanity_check.pyo	application/octet-stream	8.47 KB	root/root	0644	2021-03-16 03:26:47

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