102 lines
3.7 KiB
Python
102 lines
3.7 KiB
Python
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#!/usr/bin/env python
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# Script to parse StorCLI's JSON output and expose
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# MegaRAID health as Prometheus metrics.
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#
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# Tested against StorCLI 'Ver 1.14.12 Nov 25, 2014'.
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#
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# StorCLI reference manual:
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# http://docs.avagotech.com/docs/12352476
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#
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# Advanced Software Options (ASO) not exposed as metrics currently.
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#
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# JSON key abbreviations used by StorCLI are documented in the standard command
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# output, i.e. when you omit the trailing 'J' from the command.
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import argparse
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import json
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import subprocess
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DESCRIPTION = """Parses StorCLI's JSON output and exposes MegaRAID health as
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Prometheus metrics."""
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VERSION = '0.0.1'
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METRIC_PREFIX = 'megaraid_'
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METRIC_CONTROLLER_LABELS = '{{controller="{}", model="{}"}}'
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def main(args):
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data = json.loads(get_storcli_json(args.storcli_path))
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# It appears that the data we need will always be present in the first
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# item in the Controllers array
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status = data['Controllers'][0]
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metrics = {
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'status_code': status['Command Status']['Status Code'],
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'controllers': status['Response Data']['Number of Controllers'],
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}
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for name, value in metrics.iteritems():
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print("{}{} {}".format(METRIC_PREFIX, name, value))
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controller_info = []
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controller_metrics = {}
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overview = []
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try:
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overview = status['Response Data']['System Overview']
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except KeyError:
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pass
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for controller in overview:
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controller_index = controller['Ctl']
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model = controller['Model']
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controller_info.append(METRIC_CONTROLLER_LABELS.format(controller_index, model))
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controller_metrics = {
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# FIXME: Parse dimmer switch options
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# 'dimmer_switch': controller['DS'],
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'battery_backup_healthy': int(controller['BBU'] == 'Opt'),
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'degraded': int(controller['Hlth'] == 'Dgd'),
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'drive_groups': controller['DGs'],
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'emergency_hot_spare': int(controller['EHS'] == 'Y'),
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'failed': int(controller['Hlth'] == 'Fld'),
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'healthy': int(controller['Hlth'] == 'Opt'),
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'physical_drives': controller['PDs'],
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'ports': controller['Ports'],
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'scheduled_patrol_read': int(controller['sPR'] == 'On'),
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'virtual_drives': controller['VDs'],
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# Reverse StorCLI's logic to make metrics consistent
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'drive_groups_optimal': int(controller['DNOpt'] == 0),
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'virtual_drives_optimal': int(controller['VNOpt'] == 0),
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}
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for name, value in controller_metrics.iteritems():
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print('{}{}{{controller="{}"}} {}'.format(METRIC_PREFIX, name, controller_index, value))
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for labels in controller_info:
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print('{}{}{} {}'.format(METRIC_PREFIX, 'controller_info', labels, 1))
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def get_storcli_json(storcli_path):
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storcli_cmd = [storcli_path, 'show', 'all', 'J']
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proc = subprocess.Popen(storcli_cmd, stdout=subprocess.PIPE,
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stderr=subprocess.PIPE)
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return proc.communicate()[0]
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if __name__ == "__main__":
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parser = argparse.ArgumentParser(description=DESCRIPTION,
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formatter_class=argparse.ArgumentDefaultsHelpFormatter)
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parser.add_argument('--storcli_path',
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default='/opt/MegaRAID/storcli/storcli64',
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help='path to StorCLi binary')
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parser.add_argument('--version',
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action='version',
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version='%(prog)s {}'.format(VERSION))
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args = parser.parse_args()
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main(args)
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