quick hax script to turn identification led on disk bay connected to mpt2sas HBA from disk serial no.

find_disk.py

#!/usr/bin/env python3

import re
import subprocess
import sys

def main():
    if len(sys.argv) != 2:
        print(f'Usage: {sys.argv[0]} <serial>', file=sys.stderr)
        return 1

    serial = sys.argv[1]

    proc = subprocess.run(['sas2ircu', 'LIST'], encoding='UTF-8', stdout=subprocess.PIPE)
    if proc.returncode != 0:
        return proc.returncode

    adaptors = []
    for m in re.finditer('Index.+?(?P<index>[0-9]+)', proc.stdout, re.DOTALL):
        adaptors.append(m.group('index'))

    print(f'Found adaptors {", ".join([str(i) for i in adaptors])}')

    enclosure, slot = None, None

    for adp in adaptors:
        proc = subprocess.run(['sas2ircu', str(adp), 'DISPLAY'], encoding='UTF-8', stdout=subprocess.PIPE)
        for group in proc.stdout.split('Device is a Hard disk'):
            m = re.search(f'Enclosure #\s+:\s+(?P<enclosure>[0-9]+)\s+Slot #\s+:\s+(?P<slot>[0-9]+).+?Serial No\s+:\s+{re.escape(serial)}\n', group, re.DOTALL)
            if m is not None:
                adaptor, enclosure, slot = adp, m.group('enclosure'), m.group('slot')
                print(f'Found disk on adaptor {adaptor} in enclosure {enclosure} at slot {slot}')
                break
        if enclosure is not None:
            break

    if enclosure is None or slot is None:
        print('Disk not found!', file=sys.stderr)
        return 1

    print('Turning LED on:')
    cmd = f'sas2ircu {adaptor} LOCATE {enclosure}:{slot} ON'
    print(cmd)
    proc = subprocess.run(cmd.split(' '), stdout=subprocess.PIPE)
    if proc.returncode != 0:
        return proc.returncode

    input('LED turned on, press enter when done...')

    print('\nTurning turn LED off:')
    cmd = f'sas2ircu {adaptor} LOCATE {enclosure}:{slot} OFF'
    print(cmd)
    proc = subprocess.run(cmd.split(' '), stdout=subprocess.PIPE)
    if proc.returncode != 0:
        return proc.returncode

    return 0

if __name__ == '__main__':
    sys.exit(main())