갑작스러운 재부팅 후 RAID 5 재구축이 실패함

갑작스러운 재부팅 후 RAID 5 재구축이 실패함

RAID 5 재구성 프로세스(드라이브 4개에서 드라이브 5개로)를 실행 중이었고 밤에 냉각 팬이 고장나고 CPU 과열로 인해 서버가 갑자기 재부팅되어 이제 드라이브 하나가 더 이상 사용되지 않을 수 있습니다.

mdadm --examine /dev/sd[abcdi]

/dev/sda:
          Magic : a92b4efc
        Version : 1.2
    Feature Map : 0x45
     Array UUID : 7b55730e:002db9a2:e79a9acc:ee95da88
           Name : AlienNAS:1
  Creation Time : Mon Jun 14 22:06:14 2021
     Raid Level : raid5
   Raid Devices : 5

 Avail Dev Size : 11720780976 (5588.90 GiB 6001.04 GB)
     Array Size : 23441561600 (22355.62 GiB 24004.16 GB)
  Used Dev Size : 11720780800 (5588.90 GiB 6001.04 GB)
    Data Offset : 264192 sectors
     New Offset : 260096 sectors
   Super Offset : 8 sectors
          State : clean
    Device UUID : b1af3662:e6d41207:08fd222b:bfe10074

Internal Bitmap : 8 sectors from superblock
  Reshape pos'n : 11643189248 (11103.81 GiB 11922.63 GB)
  Delta Devices : 1 (4->5)

    Update Time : Sun Jan 15 10:09:13 2023
  Bad Block Log : 512 entries available at offset 32 sectors
       Checksum : 16afeaeb - correct
         Events : 22037

         Layout : left-symmetric
     Chunk Size : 512K

   Device Role : Active device 2
   Array State : AAAA. ('A' == active, '.' == missing, 'R' == replacing)

/dev/sdb:
          Magic : a92b4efc
        Version : 1.2
    Feature Map : 0x45
     Array UUID : 7b55730e:002db9a2:e79a9acc:ee95da88
           Name : AlienNAS:1
  Creation Time : Mon Jun 14 22:06:14 2021
     Raid Level : raid5
   Raid Devices : 5

 Avail Dev Size : 11720780976 (5588.90 GiB 6001.04 GB)
     Array Size : 23441561600 (22355.62 GiB 24004.16 GB)
  Used Dev Size : 11720780800 (5588.90 GiB 6001.04 GB)
    Data Offset : 264192 sectors
     New Offset : 260096 sectors
   Super Offset : 8 sectors
          State : clean
    Device UUID : dc6f6b93:ca24c965:6773fc72:1b9b36c5

Internal Bitmap : 8 sectors from superblock
  Reshape pos'n : 11646240768 (11106.72 GiB 11925.75 GB)
  Delta Devices : 1 (4->5)

    Update Time : Sun Jan 15 10:10:58 2023
  Bad Block Log : 512 entries available at offset 32 sectors
       Checksum : 40074b23 - correct
         Events : 22042

         Layout : left-symmetric
     Chunk Size : 512K

   Device Role : Active device 1
   Array State : AAAA. ('A' == active, '.' == missing, 'R' == replacing)

/dev/sdc:

          Magic : a92b4efc
        Version : 1.2
    Feature Map : 0x45
     Array UUID : 7b55730e:002db9a2:e79a9acc:ee95da88
           Name : AlienNAS:1
  Creation Time : Mon Jun 14 22:06:14 2021
     Raid Level : raid5
   Raid Devices : 5

 Avail Dev Size : 11720780976 (5588.90 GiB 6001.04 GB)
     Array Size : 23441561600 (22355.62 GiB 24004.16 GB)
  Used Dev Size : 11720780800 (5588.90 GiB 6001.04 GB)
    Data Offset : 264192 sectors
     New Offset : 260096 sectors
   Super Offset : 8 sectors
          State : clean
    Device UUID : ec41cd88:9f0af810:fb4d44f0:8df26665

Internal Bitmap : 8 sectors from superblock
  Reshape pos'n : 11644702720 (11105.25 GiB 11924.18 GB)
  Delta Devices : 1 (4->5)

    Update Time : Sun Jan 15 10:10:47 2023
  Bad Block Log : 512 entries available at offset 32 sectors
       Checksum : fde14504 - correct
         Events : 22041

         Layout : left-symmetric
     Chunk Size : 512K

   Device Role : Active device 3
   Array State : AAAA. ('A' == active, '.' == missing, 'R' == replacing)

/dev/sdd:

          Magic : a92b4efc
        Version : 1.2
    Feature Map : 0x45
     Array UUID : 7b55730e:002db9a2:e79a9acc:ee95da88
           Name : AlienNAS:1
  Creation Time : Mon Jun 14 22:06:14 2021
     Raid Level : raid5
   Raid Devices : 5

 Avail Dev Size : 11720780976 (5588.90 GiB 6001.04 GB)
     Array Size : 23441561600 (22355.62 GiB 24004.16 GB)
  Used Dev Size : 11720780800 (5588.90 GiB 6001.04 GB)
    Data Offset : 264192 sectors
     New Offset : 260096 sectors
   Super Offset : 8 sectors
          State : clean
    Device UUID : ff953142:14667e54:d725d785:05b0ee8b

Internal Bitmap : 8 sectors from superblock
  Reshape pos'n : 11644702720 (11105.25 GiB 11924.18 GB)
  Delta Devices : 1 (4->5)

    Update Time : Sun Jan 15 10:10:58 2023
  Bad Block Log : 512 entries available at offset 32 sectors
       Checksum : b6e689e8 - correct
         Events : 22042

         Layout : left-symmetric
     Chunk Size : 512K

   Device Role : Active device 0
   Array State : AAAA. ('A' == active, '.' == missing, 'R' == replacing)

/dev/sde:
          Magic : a92b4efc
        Version : 1.2
    Feature Map : 0x1
     Array UUID : f9685831:a8225d4c:49ce6aca:2b49612c
           Name : AlienNAS:1
  Creation Time : Thu Jun 17 07:21:06 2021
     Raid Level : raid5
   Raid Devices : 5

 Avail Dev Size : 5860273072 (2794.40 GiB 3000.46 GB)
     Array Size : 11720536064 (11177.57 GiB 12001.83 GB)
  Used Dev Size : 5860268032 (2794.39 GiB 3000.46 GB)
    Data Offset : 260096 sectors
   Super Offset : 8 sectors
   Unused Space : before=260016 sectors, after=5040 sectors
          State : clean
    Device UUID : 76e063b8:ebb80d30:86c69755:629376e0

Internal Bitmap : 8 sectors from superblock
    Update Time : Sun Jan 15 10:59:08 2023
  Bad Block Log : 512 entries available at offset 24 sectors
       Checksum : e93f4335 - correct
         Events : 17214

         Layout : left-symmetric
     Chunk Size : 512K

   Device Role : Active device 3
   Array State : AAAAA ('A' == active, '.' == missing, 'R' == replacing)

/dev/sdi:

          Magic : a92b4efc
        Version : 1.2
    Feature Map : 0x45
     Array UUID : 7b55730e:002db9a2:e79a9acc:ee95da88
           Name : AlienNAS:1
  Creation Time : Mon Jun 14 22:06:14 2021
     Raid Level : raid5
   Raid Devices : 5

 Avail Dev Size : 11720780976 (5588.90 GiB 6001.04 GB)
     Array Size : 23441561600 (22355.62 GiB 24004.16 GB)
  Used Dev Size : 11720780800 (5588.90 GiB 6001.04 GB)
    Data Offset : 264192 sectors
     New Offset : 260096 sectors
   Super Offset : 8 sectors
          State : clean
    Device UUID : df5806de:0f7ba1b5:4517d85d:96bc4de8

Internal Bitmap : 8 sectors from superblock
  Reshape pos'n : 11646240768 (11106.72 GiB 11925.75 GB)
  Delta Devices : 1 (4->5)

    Update Time : Sun Jan 15 10:10:58 2023
  Bad Block Log : 512 entries available at offset 32 sectors
       Checksum : e86d4fc8 - correct
         Events : 22042

         Layout : left-symmetric
     Chunk Size : 512K

   Device Role : spare
   Array State : AAAA. ('A' == active, '.' == missing, 'R' == replacing)

그리고

mdadm --assemble --force /dev/md126 /dev/sda /dev/sdb /dev/sdc /dev/sdd /dev/sdi --verbose

mdadm: looking for devices for /dev/md126
mdadm: /dev/sda is identified as a member of /dev/md126, slot 2.
mdadm: /dev/sdb is identified as a member of /dev/md126, slot 1.
mdadm: /dev/sdc is identified as a member of /dev/md126, slot 3.
mdadm: /dev/sdd is identified as a member of /dev/md126, slot 0.
mdadm: /dev/sdi is identified as a member of /dev/md126, slot -1.
mdadm: added /dev/sdb to /dev/md126 as 1
mdadm: added /dev/sda to /dev/md126 as 2 (possibly out of date)
mdadm: added /dev/sdc to /dev/md126 as 3
mdadm: no uptodate device for slot 4 of /dev/md126
mdadm: added /dev/sdi to /dev/md126 as -1
mdadm: added /dev/sdd to /dev/md126 as 0
mdadm: /dev/md126 assembled from 3 drives and 1 spare - not enough to start the array.

그리고

mdadm --detail /dev/md126

/dev/md126:
           Version : 1.2
        Raid Level : raid0
     Total Devices : 5
       Persistence : Superblock is persistent

             State : inactive
   Working Devices : 5

     Delta Devices : 1, (-1->0)
         New Level : raid5
        New Layout : left-symmetric
     New Chunksize : 512K

              Name : AlienNAS:1
              UUID : 7b55730e:002db9a2:e79a9acc:ee95da88
            Events : 22041

    Number   Major   Minor   RaidDevice

       -       8       32        -        /dev/sdc
       -       8        0        -        /dev/sda
       -       8       48        -        /dev/sdd
       -       8       16        -        /dev/sdb
       -       8      128        -        /dev/sdi

그리고

mdadm --add -v /dev/md126 /dev/sda
mdadm: Cannot get array info for /dev/md126

어떤 도움이라도 정말 감사하겠습니다! 감사해요.

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