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#!/usr/bin/env python3
"""
Script to parse StorCLI's JSON output and expose
MegaRAID health as Prometheus metrics.
Tested against StorCLI 'Ver 1.14.12 Nov 25, 2014'.
StorCLI reference manual:
http://docs.avagotech.com/docs/12352476
Advanced Software Options (ASO) not exposed as metrics currently.
JSON key abbreviations used by StorCLI are documented in the standard command
output, i.e. when you omit the trailing 'J' from the command.
"""
from __future__ import print_function
import argparse
import json
import os
import subprocess
import shlex
from dateutil.parser import parse
import collections
from enum import IntEnum
DESCRIPTION = """Parses StorCLI's JSON output and exposes MegaRAID health as
Prometheus metrics."""
VERSION = '0.0.2'
storcli_path = ''
metric_prefix = 'megaraid_'
metric_list = {}
metric_list = collections.defaultdict(list)
class VD_State(IntEnum):
Optl = 0 # Optimal
Dgrd = 1 # Degraded
Pdgd = 2 # Partially Degraded
OfLn = 3 # Offline
Rec = 4 # Recovery
Cac = 5 # CacheCade
def main(args):
""" main """
global storcli_path
storcli_path = args.storcli_path
data = json.loads(get_storcli_json('/cALL show all J'))
# All the information is collected underneath the Controllers key
data = data['Controllers']
# try:
# overview = status['Response Data']['System Overview']
# except KeyError:
# pass
for controller in data:
response = controller['Response Data']
if response['Version']['Driver Name'] == 'megaraid_sas':
handle_megaraid_controller(response)
elif response['Version']['Driver Name'] == 'mpt3sas':
handle_sas_controller(response)
# print_dict_to_exporter({'controller_info': [1]}, controller_info_list)
# print_dict_to_exporter({'virtual_disk_info': [1]}, vd_info_list)
# print_dict_to_exporter({'physical_disk_info': [1]}, pd_info_list)
# print_all_metrics(vd_metric_list)
print_all_metrics(metric_list)
def handle_sas_controller(response):
pass
def handle_megaraid_controller(response):
controller_index = response['Basics']['Controller']
baselabel = 'controller="{}"'.format(controller_index)
controller_info_label = baselabel + ',model="{}",serial="{}",fwversion="{}"'.format(
response['Basics']['Model'],
response['Basics']['Serial Number'],
response['Version']['Firmware Version'],
)
add_metric('controller_info', controller_info_label, 1)
add_metric('battery_backup_healthy', baselabel, int(response['Status']['BBU Status'] == 0))
add_metric('degraded', baselabel, int(response['Status']['Controller Status'] == 'Degraded'))
add_metric('failed', baselabel, int(response['Status']['Controller Status'] == 'Failed'))
add_metric('healthy', baselabel, int(response['Status']['Controller Status'] == 'Optimal'))
add_metric('drive_groups', baselabel, response['Drive Groups'])
add_metric('virtual_drives', baselabel, response['Virtual Drives'])
add_metric('physical_drives', baselabel, response['Physical Drives'])
add_metric('ports', baselabel, response['HwCfg']['Backend Port Count'])
add_metric('scheduled_patrol_read', baselabel,
int('hrs' in response['Scheduled Tasks']['Patrol Read Reoccurrence']))
time_difference_seconds = -1
system_time = parse(response['Basics'].get('Current System Date/time'))
controller_time = parse(response['Basics'].get('Current Controller Date/Time'))
if system_time and controller_time:
time_difference_seconds = abs(system_time - controller_time).seconds
add_metric('time_difference', baselabel, time_difference_seconds)
for virtual_drive in response['VD LIST']:
vd_position = virtual_drive.get('DG/VD')
drive_group, volume_group = -1, -1
if vd_position:
drive_group = vd_position.split('/')[0]
volume_group = vd_position.split('/')[1]
vd_baselabel = 'controller="{}",DG="{}",VG="{}"'.format(controller_index, drive_group,
volume_group)
vd_info_label = vd_baselabel + ',name="{}",cache="{}",type="{}"'.format(
virtual_drive.get('Name'), virtual_drive.get('Cache'), virtual_drive.get('TYPE'))
add_metric('vd_info', vd_info_label, 1)
add_metric('vd_status', vd_baselabel, int(VD_State[virtual_drive.get('State')]))
if response['Physical Drives'] > 0:
data = json.loads(get_storcli_json('/cALL/eALL/sALL show all J'))
drive_info = data['Controllers'][controller_index]['Response Data']
for physical_drive in response['PD LIST']:
enclosure = physical_drive.get('EID:Slt').split(':')[0]
slot = physical_drive.get('EID:Slt').split(':')[1]
pd_baselabel = 'controller="{}",enclosure="{}",slot="{}"'.format(
controller_index, enclosure, slot)
pd_info_label = pd_baselabel + ',disk_id="{}",interface="{}",media="{}",model="{}"'.format(
physical_drive.get('DID'), physical_drive.get('Intf'), physical_drive.get('Med'),
physical_drive.get('Model').strip())
drive_identifier = 'Drive /c' + str(controller_index) + '/e' + str(enclosure) + '/s' + str(
slot)
try:
info = drive_info[drive_identifier + ' - Detailed Information']
state = info[drive_identifier + ' State']
attributes = info[drive_identifier + ' Device attributes']
settings = info[drive_identifier + ' Policies/Settings']
add_metric('pd_shield_counter', pd_baselabel, state['Shield Counter'])
add_metric('pd_media_errors_total', pd_baselabel, state['Media Error Count'])
add_metric('pd_other_errors_total', pd_baselabel, state['Other Error Count'])
add_metric('pd_predictive_errors_total', pd_baselabel,
state['Predictive Failure Count'])
add_metric('pd_smart_alerted', pd_baselabel,
int(state['S.M.A.R.T alert flagged by drive'] == 'Yes'))
add_metric('pd_link_speed_gbps', pd_baselabel, attributes['Link Speed'].split('.')[0])
add_metric('pd_device_speed_gbps', pd_baselabel,
attributes['Device Speed'].split('.')[0])
add_metric('pd_commissioned_spare', pd_baselabel,
int(settings['Commissioned Spare'] == 'Yes'))
add_metric('pd_emergency_spare', pd_baselabel,
int(settings['Emergency Spare'] == 'Yes'))
pd_info_label += ',firmware="{}"'.format(attributes['Firmware Revision'])
except KeyError:
pass
add_metric('pd_info', pd_info_label, 1)
def add_metric(name, labels, value):
global metric_list
metric_list[name].append({
'labels': labels,
'value': value,
})
def print_all_metrics(metrics):
for metric, measurements in metrics.items():
print('# HELP {}{} MegaRAID {}'.format(metric_prefix, metric, metric.replace('_', ' ')))
print('# TYPE {}{} gauge'.format(metric_prefix, metric))
for measurement in measurements:
print('{}{}{} {}'.format(metric_prefix, metric, '{' + measurement['labels'] + '}',
measurement['value']))
def get_storcli_json(storcli_args):
"""Get storcli output in JSON format."""
# Check if storcli is installed and executable
if not (os.path.isfile(storcli_path) and os.access(storcli_path, os.X_OK)):
SystemExit(1)
storcli_cmd = shlex.split(storcli_path + ' ' + storcli_args)
proc = subprocess.Popen(
storcli_cmd, shell=False, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
output_json = proc.communicate()[0]
return output_json.decode("utf-8")
if __name__ == "__main__":
PARSER = argparse.ArgumentParser(
description=DESCRIPTION, formatter_class=argparse.ArgumentDefaultsHelpFormatter)
PARSER.add_argument(
'--storcli_path', default='/opt/MegaRAID/storcli/storcli64', help='path to StorCLi binary')
PARSER.add_argument('--version', action='version', version='%(prog)s {}'.format(VERSION))
ARGS = PARSER.parse_args()
main(ARGS)
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