Add raid_report.py
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165
raid_report.py
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165
raid_report.py
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#!/usr/bin/env python3
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"""
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Dell MegaRAID Status Report - Clean Table Only
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"""
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import subprocess
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import re
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import sys
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import csv
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from datetime import datetime
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import os
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import argparse
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NAGIOS_OK = 0; NAGIOS_WARNING = 1; NAGIOS_CRITICAL = 2; NAGIOS_UNKNOWN = 3
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def run_megacli(cmd):
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try:
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result = subprocess.run(['/opt/MegaRAID/MegaCli/MegaCli64'] + cmd.split(),
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capture_output=True, text=True, timeout=30)
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return result.stdout.strip() if result.returncode == 0 else None
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except:
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return None
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def parse_pdlist(output):
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disks = []
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if not output:
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return disks
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lines = output.splitlines()
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i = 0
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while i < len(lines):
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line = lines[i].rstrip()
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# Slot detection
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slot_match = re.search(r'Slot Number:\s*(\d+)', line)
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if slot_match:
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disk = {'slot': slot_match.group(1)}
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# Parse next block for all fields
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block_end = min(i + 35, len(lines))
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block_lines = lines[i:block_end]
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block_text = ' '.join(block_lines)
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# Device ID
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devid_match = re.search(r'Device Id:\s*(\d+)', block_text)
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disk['devid'] = devid_match.group(1) if devid_match else 'N/A'
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# Model - clean inquiry data
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model_match = re.search(r'Inquiry Data:\s*([^\s].*?)(?=\s{10,}|\Z)', block_text)
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disk['model'] = model_match.group(1).strip()[:24] if model_match else 'N/A'
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# State
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state_match = re.search(r'Firmware state:\s*([^\r\n]{1,30})', block_text)
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disk['state'] = state_match.group(1).strip() if state_match else 'N/A'
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# Error counters
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disk['media_err'] = re.search(r'Media Error Count:\s*(\d+)', block_text).group(1) if re.search(r'Media Error Count:\s*(\d+)', block_text) else '0'
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disk['pred_fail'] = re.search(r'Predictive Failure Count:\s*(\d+)', block_text).group(1) if re.search(r'Predictive Failure Count:\s*(\d+)', block_text) else '0'
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# SMART alert - exact match
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smart_match = re.search(r'Drive has flagged a S\.M\.A\.R\.T alert\s*:\s*(Yes|No)', block_text)
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disk['smart'] = smart_match.group(1) if smart_match else 'N/A'
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# TEMPERATURE - FIXED regex for "Drive Temperature :40C (104.00 F)"
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temp_match = re.search(r'Drive Temperature\s*:\s*(\d+)C', block_text)
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if temp_match:
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disk['temp'] = f"{temp_match.group(1)}C"
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else:
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# Fallback for different formats
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temp_fallback = re.search(r'Temperature\s*:\s*(\d+)', block_text)
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disk['temp'] = f"{temp_fallback.group(1)}C" if temp_fallback else 'N/A'
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# Health calculation
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me = int(disk['media_err'])
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pf = int(disk['pred_fail'])
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disk['health'] = ('CRITICAL' if (me > 10 or pf > 0 or disk['smart'] == 'Yes')
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else 'WARNING' if me > 0 else 'OK')
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disks.append(disk)
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i += 30
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else:
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i += 1
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return disks
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def print_table(disks):
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print("\nRAID STATUS REPORT")
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print("-" * 104)
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print(f"Generated: {datetime.now().strftime('%Y-%m-%d %H:%M:%S CET')} | Total Disks: {len(disks)}")
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print("-" * 104)
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print(f"{'Slot':<4} {'ID':<3} {'Model':<25} {'State':<20} {'MediaErr':<9} {'PredFail':<8} "
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f"{'SMART':<5} {'Temp':<6} {'Health':<10}")
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print("-" * 104)
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stats = {'CRITICAL': 0, 'WARNING': 0, 'OK': 0}
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for disk in disks:
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health = disk['health']
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stats[health] += 1
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color = {'CRITICAL': '\033[91m', 'WARNING': '\033[93m', 'OK': '\033[92m'}[health]
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print(f"{color}{disk['slot']:<4} {disk['devid']:<3} {disk['model']:<25} "
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f"{disk['state'][:19]:<20} {disk['media_err']:<9} {disk['pred_fail']:<8} "
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f"{disk['smart']:<5} {disk['temp']:<6} {health:<10}\033[0m")
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print("-" * 104)
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print(f"SUMMARY: CRITICAL={stats['CRITICAL']:2d} WARNING={stats['WARNING']:2d} "
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f"OK={stats['OK']:2d}")
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if stats['CRITICAL'] > 0:
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print(f"ALERT: {stats['CRITICAL']} disks require immediate attention")
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vd_status = get_vd_status()
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print(f"Virtual Disks: {vd_status}")
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def nagios_check(disks):
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critical = sum(1 for d in disks if d['health'] == 'CRITICAL')
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warning = sum(1 for d in disks if d['health'] == 'WARNING')
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perfdata = (f"total={len(disks)} critical={critical} warning={warning} "
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f"media_err_total={sum(int(d['media_err']) for d in disks)}")
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if critical > 0:
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print(f"CRITICAL: {critical} critical disks | {perfdata}")
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sys.exit(NAGIOS_CRITICAL)
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elif warning > 0:
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print(f"WARNING: {warning} warning disks | {perfdata}")
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sys.exit(NAGIOS_WARNING)
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else:
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print(f"OK: All {len(disks)} disks healthy | {perfdata}")
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sys.exit(NAGIOS_OK)
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def save_csv(disks):
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filename = f"raid-report-{datetime.now().strftime('%Y%m%d-%H%M')}.csv"
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with open(filename, 'w', newline='') as f:
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writer = csv.DictWriter(f, fieldnames=['slot','devid','model','state','media_err',
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'pred_fail','smart','temp','health'])
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writer.writeheader()
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writer.writerows(disks)
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print(f"\nCSV exported: {os.path.abspath(filename)}")
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def get_vd_status():
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vd = run_megacli('-LDInfo -Lall -aALL')
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if not vd:
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return "Unknown"
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if 'Optimal' in vd:
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return "Optimal"
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if any(s in vd for s in ['Degraded', 'Rebuild']):
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return "Degraded/Rebuild"
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return "Check manually"
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if __name__ == '__main__':
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parser = argparse.ArgumentParser(description='MegaRAID Monitor - Clean Output')
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parser.add_argument('--check', action='store_true', help='Nagios mode')
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parser.add_argument('--csv', action='store_true', help='Save CSV')
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args = parser.parse_args()
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pd_data = run_megacli('-PDList -aALL')
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disks = parse_pdlist(pd_data)
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if args.check:
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nagios_check(disks)
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else:
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print_table(disks)
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if args.csv:
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save_csv(disks)
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