#!/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. Formatting done with YAPF: $ yapf -i --style '{COLUMN_LIMIT: 99}' storcli.py """ from __future__ import print_function from datetime import datetime import argparse import collections import json import os import shlex import subprocess DESCRIPTION = """Parses StorCLI's JSON output and exposes MegaRAID health as Prometheus metrics.""" VERSION = '0.0.3' storcli_path = '' metric_prefix = 'megaraid_' metric_list = {} metric_list = collections.defaultdict(list) def main(args): """ main """ global storcli_path storcli_path = args.storcli_path data = get_storcli_json('/cALL show all J') try: # All the information is collected underneath the Controllers key data = data['Controllers'] 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) except KeyError: pass print_all_metrics(metric_list) def handle_sas_controller(response): (controller_index, baselabel) = get_basic_controller_info(response) add_metric('healthy', baselabel, int(response['Status']['Controller Status'] == 'OK')) add_metric('ports', baselabel, response['HwCfg']['Backend Port Count']) try: # The number of physical disks is half of the number of items in this dict # Every disk is listed twice - once for basic info, again for detailed info add_metric('physical_drives', baselabel, len(response['Physical Device Information'].keys()) / 2) except AttributeError: pass # Split up string to not trigger CodeSpell issues add_metric('temperature', baselabel, int(response['HwCfg']['ROC temperature(Degree Celc' + 'ius)'])) for key, basic_disk_info in response['Physical Device Information'].items(): if 'Detailed Information' in key: continue create_metrcis_of_physical_drive(basic_disk_info[0], response['Physical Device Information'], controller_index) def handle_megaraid_controller(response): (controller_index, baselabel) = get_basic_controller_info(response) # BBU Status Optimal value is 0 for cachevault and 32 for BBU add_metric('battery_backup_healthy', baselabel, int(response['Status']['BBU Status'] in [0, 32])) 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'])) add_metric('temperature', baselabel, int(response['HwCfg']['ROC temperature(Degree Celsius)'])) time_difference_seconds = -1 system_time = datetime.strptime(response['Basics'].get('Current System Date/time'), "%m/%d/%Y, %H:%M:%S") controller_time = datetime.strptime(response['Basics'].get('Current Controller Date/Time'), "%m/%d/%Y, %H:%M:%S") 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="{}",state="{}"'.format( str(virtual_drive.get('Name')).strip(), str(virtual_drive.get('Cache')).strip(), str(virtual_drive.get('TYPE')).strip(), str(virtual_drive.get('State')).strip()) add_metric('vd_info', vd_info_label, 1) if response['Physical Drives'] > 0: data = get_storcli_json('/cALL/eALL/sALL show all J') drive_info = data['Controllers'][controller_index]['Response Data'] for physical_drive in response['PD LIST']: create_metrcis_of_physical_drive(physical_drive, drive_info, controller_index) def get_basic_controller_info(response): controller_index = response['Basics']['Controller'] baselabel = 'controller="{}"'.format(controller_index) controller_info_label = baselabel + ',model="{}",serial="{}",fwversion="{}"'.format( str(response['Basics']['Model']).strip(), str(response['Basics']['Serial Number']).strip(), str(response['Version']['Firmware Version']).strip(), ) add_metric('controller_info', controller_info_label, 1) return (controller_index, baselabel) def create_metrcis_of_physical_drive(physical_drive, detailed_info_array, controller_index): 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="{}",DG="{}"'.format( str(physical_drive.get('DID')).strip(), str(physical_drive.get('Intf')).strip(), str(physical_drive.get('Med')).strip(), str(physical_drive.get('Model')).strip(), str(physical_drive.get('DG')).strip()) drive_identifier = 'Drive /c' + str(controller_index) + '/e' + str(enclosure) + '/s' + str( slot) if enclosure == ' ': drive_identifier = 'Drive /c' + str(controller_index) + '/s' + str(slot) try: info = detailed_info_array[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', pd_baselabel, state['Media Error Count']) add_metric('pd_other_errors', pd_baselabel, state['Other Error Count']) add_metric('pd_predictive_errors', 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'].strip()) except KeyError: pass add_metric('pd_info', pd_info_label, 1) def add_metric(name, labels, value): global metric_list try: metric_list[name].append({ 'labels': labels, 'value': float(value), }) except ValueError: pass 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] data = json.loads(output_json.decode("utf-8")) if data["Controllers"][0]["Command Status"]["Status"] != "Success": SystemExit(1) return data 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)