我有三个磁盘，它们是 debian 机器上的阵列的一部分，无法再启动。我已将它们安装在 ubuntu 18.04 机器上，并尝试安装它们，但出现错误“无法读取 /dev/md127 上的超级块”
我跑了
sudo mdadm --assemble --scan
mdadm: failed to add /dev/sdd to /dev/md/storage: Device or resource busy
mdadm: failed to add /dev/sde to /dev/md/storage: Device or resource busy
mdadm: /dev/md/storage has been started with 1 drive (out of 3).
然后我尝试安装一个驱动器
/etc/mdadm$ lsblk -o NAME,SIZE,FSTYPE,TYPE,MOUNTPOINT
NAME SIZE FSTYPE TYPE MOUNTPOINT
loop0 98.4M squashfs loop /snap/telegram-desktop/270
loop1 87M squashfs loop /snap/core/5145
loop2 172.5M squashfs loop /snap/spotify/19
loop3 143.9M squashfs loop /snap/slack/7
loop4 98.5M squashfs loop /snap/telegram-desktop/274
loop5 141.5M squashfs loop /snap/slack/8
loop6 87.9M squashfs loop /snap/core/5328
sda 232.9G disk
└─sda1 232.9G ext4 part /
sdd 931.5G linux_raid_member disk
sde 931.5G linux_raid_member disk
sdf 931.5G linux_raid_member disk
└─md127 1.8T raid5
/etc/mdadm$ sudo mkdir -p /mnt/md0
/etc/mdadm$ sudo mount /dev/sdf /mnt/md0
mount: /mnt/md0: unknown filesystem type 'linux_raid_member'.
/etc/mdadm$ sudo mount /dev/md127 /mnt/md0
mount: /mnt/md0: can't read superblock on /dev/md127.
/etc/mdadm$
以下是 mdadm 检查输出
sudo mdadm --examine /dev/sdd
/dev/sdd:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x0
Array UUID : 3e82e98a:7050682c:c641e233:714b5b69
Name : omv:storage
Creation Time : Mon Sep 26 20:08:00 2016
Raid Level : raid5
Raid Devices : 3
Avail Dev Size : 1953263024 (931.39 GiB 1000.07 GB)
Array Size : 1953262592 (1862.78 GiB 2000.14 GB)
Used Dev Size : 1953262592 (931.39 GiB 1000.07 GB)
Data Offset : 262144 sectors
Super Offset : 8 sectors
Unused Space : before=262064 sectors, after=432 sectors
State : clean
Device UUID : 4d229594:462796ec:ee07bbc5:1f3234eb
Update Time : Tue Aug 28 08:46:10 2018
Checksum : 792d574c - correct
Events : 262
Layout : left-symmetric
Chunk Size : 512K
Device Role : Active device 1
Array State : AAA ('A' == active, '.' == missing, 'R' == replacing)
~/Downloads$ sudo mdadm --examine /dev/sde
/dev/sde:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x0
Array UUID : 3e82e98a:7050682c:c641e233:714b5b69
Name : omv:storage
Creation Time : Mon Sep 26 20:08:00 2016
Raid Level : raid5
Raid Devices : 3
Avail Dev Size : 1953263024 (931.39 GiB 1000.07 GB)
Array Size : 1953262592 (1862.78 GiB 2000.14 GB)
Used Dev Size : 1953262592 (931.39 GiB 1000.07 GB)
Data Offset : 262144 sectors
Super Offset : 8 sectors
Unused Space : before=262064 sectors, after=432 sectors
State : clean
Device UUID : 68199cc9:4ecea294:b2c95ef6:6a6e31eb
Update Time : Tue Aug 28 08:46:10 2018
Checksum : 86e1f37d - correct
Events : 262
Layout : left-symmetric
Chunk Size : 512K
Device Role : Active device 0
Array State : AAA ('A' == active, '.' == missing, 'R' == replacing)
~/Downloads$ sudo mdadm --examine /dev/sdf
/dev/sdf:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x0
Array UUID : 3e82e98a:7050682c:c641e233:714b5b69
Name : omv:storage
Creation Time : Mon Sep 26 20:08:00 2016
Raid Level : raid5
Raid Devices : 3
Avail Dev Size : 1953263024 (931.39 GiB 1000.07 GB)
Array Size : 1953262592 (1862.78 GiB 2000.14 GB)
Used Dev Size : 1953262592 (931.39 GiB 1000.07 GB)
Data Offset : 262144 sectors
Super Offset : 8 sectors
Unused Space : before=262064 sectors, after=432 sectors
State : clean
Device UUID : 33e291e2:17dffadf:52c0d72d:3c5867f9
Update Time : Tue Aug 28 08:46:10 2018
Checksum : 30dead85 - correct
Events : 262
Layout : left-symmetric
Chunk Size : 512K
Device Role : Active device 2
Array State : AAA ('A' == active, '.' == missing, 'R' == replacing)
更新输出
:~$ sudo mdadm --stop /dev/md/storage
mdadm: stopped /dev/md/storage
:~$ sudo mdadm --assemble --scan
mdadm: /dev/md/storage assembled from 1 drive - not enough to start the array.
:~$ sudo mdadm --assemble --scan
:~$ lsblk -o NAME,SIZE,FSTYPE,TYPE,MOUNTPOINT
NAME SIZE FSTYPE TYPE MOUNTPOINT
loop0 98.4M squashfs loop /snap/telegram-desktop/270
loop1 87M squashfs loop /snap/core/5145
loop2 172.5M squashfs loop /snap/spotify/19
loop3 143.9M squashfs loop /snap/slack/7
loop4 98.5M squashfs loop /snap/telegram-desktop/274
loop5 141.5M squashfs loop /snap/slack/8
loop6 87.9M squashfs loop /snap/core/5328
sda 232.9G disk
└─sda1 232.9G ext4 part /
sdd 931.5G linux_raid_member disk
sde 931.5G linux_raid_member disk
sdf 931.5G linux_raid_member disk
:~$ sudo mkdir -p /mnt/md0
:~$ sudo mount /dev/sdf /mnt/md^C
:~$ sudo mount /dev/sdf /mnt/md0^C
:~$ sudo mount /dev/sdd /mnt/md0
mount: /mnt/md0: unknown filesystem type 'linux_raid_member'.
:~$ sudo mount /dev/sde /mnt/md0
mount: /mnt/md0: unknown filesystem type 'linux_raid_member'.
:~$ sudo mount /dev/sdf /mnt/md0
mount: /mnt/md0: unknown filesystem type 'linux_raid_member'.