megaraidとdisk id良い感じにするやつ

show_disk_id.py

import subprocess
from pprint import pprint
import re
import os
import json
import humanize

cfg = subprocess.run(
    ["sudo", "megacli", "-CfgDsply", "-a0"], capture_output=True, text=True)
# print(cfg)
hw = subprocess.run(
    ["sudo", "lshw", "-class", "disk", "-json"], capture_output=True, text=True)
hw_json = json.loads(hw.stdout)

disk_group = re.split('DISK GROUP: ', cfg.stdout)
# pprint(hw_json)

for disk in filter(lambda x: x['product'] == 'RAID 5/6 SAS 6G', hw_json):
    print('---- ' + disk['id'])
    print('\tsize:\t' + humanize.naturalsize(disk['size']))
    s = [disk['serial'][i: i+2]
         for i in range(0, len(disk['serial']), 2)]
    s.reverse()
    # print(s)
    by_id_path = '/dev/disk/by-id/scsi-360' + (''.join(s[:-1]))
    print('\tpath:\t%s (validity: %r)' %
          (by_id_path, os.path.exists(by_id_path)))
    if os.path.exists(by_id_path):
        sd = os.readlink(by_id_path)
        print('\tblk:\t%s' % os.path.basename(sd))

    match_disks = list(filter(lambda x: 'Virtual Drive: %d' %
                              int(disk['id'].lstrip('disk:')) in x, disk_group))
    for d in match_disks:
        disk_info = d.splitlines()
        inq = list(map(lambda x: re.sub(r'Inquiry Data:\s+', '', x).strip(),
                   filter(lambda x: 'Inquiry Data' in x, disk_info)))
        print('\tmodel:\t' + inq[0])
        enc_id = re.search('Enclosure Device ID: (\d+)', d)
        if enc_id:
            slot = re.search('Slot Number: (\d+)', d)
            print('\tloc:\tmegacli -PdLocate -start -physdrv\[%d:%d\] -a0' %
                  (int(enc_id.group(1)), int(slot.group(1))))