我正在运行具有三个 RAID1 阵列的家庭服务器，每个阵列有两个驱动器：md0、md1和md127。意外重新启动后，md0并且md1仅在一台设备上运行，并且我无法添加回相应的第二台设备。
这些是数组：
- md0: /dev/sdg1, /dev/sdi1
- md1: /dev/sdf1, /dev/sdd1
- md127: /dev/sdh, /dev/sdb1
这是输出lsblk：
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 3.7T 0 disk
sdb 8:16 0 1.8T 0 disk
└─sdb1 8:17 0 1.8T 0 part
└─md127 9:127 0 1.8T 0 raid1
sdc 8:32 0 465.8G 0 disk
└─sdc1 8:33 0 465.8G 0 part
sdd 8:48 0 931.5G 0 disk
└─sdd1 8:49 0 931.5G 0 part
sde 8:64 0 2.7T 0 disk
└─sde1 8:65 0 2.7T 0 part
sdf 8:80 0 931.5G 0 disk
└─sdf1 8:81 0 931.5G 0 part
└─md1 9:1 0 931.4G 0 raid1
sdg 8:96 0 465.8G 0 disk
└─sdg1 8:97 0 465.8G 0 part
└─md0 9:0 0 465.6G 0 raid1 /
sdh 8:112 0 1.8T 0 disk
└─sdh1 8:113 0 1.8T 0 part
└─md127 9:127 0 1.8T 0 raid1
sdi 8:128 1 465.8G 0 disk
└─sdi1 8:129 1 465.8G 0 part
sdj 8:144 1 29.8G 0 disk
└─sdj1 8:145 1 29.8G 0 part [SWAP]
这是有问题的两个阵列的状态：
/dev/md0:
Version : 1.2
Creation Time : Sat Apr 13 18:47:42 2019
Raid Level : raid1
Array Size : 488244864 (465.63 GiB 499.96 GB)
Used Dev Size : 488244864 (465.63 GiB 499.96 GB)
Raid Devices : 2
Total Devices : 1
Persistence : Superblock is persistent
Intent Bitmap : Internal
Update Time : Sun Sep 1 20:12:17 2019
State : clean, degraded
Active Devices : 1
Working Devices : 1
Failed Devices : 0
Spare Devices : 0
Name : GC01SRVR:0 (local to host GC01SRVR)
UUID : 21f37e07:aea8dfec:e78b69d7:46f70c4d
Events : 399869
Number Major Minor RaidDevice State
- 0 0 0 removed
1 8 97 1 active sync /dev/sdg1
/dev/md1:
Version : 1.2
Creation Time : Sat Apr 13 18:50:33 2019
Raid Level : raid1
Array Size : 976628736 (931.39 GiB 1000.07 GB)
Used Dev Size : 976628736 (931.39 GiB 1000.07 GB)
Raid Devices : 2
Total Devices : 1
Persistence : Superblock is persistent
Intent Bitmap : Internal
Update Time : Sun Sep 1 20:02:33 2019
State : clean, degraded
Active Devices : 1
Working Devices : 1
Failed Devices : 0
Spare Devices : 0
Name : GC01SRVR:1 (local to host GC01SRVR)
UUID : e0e49af7:7a791be6:168f01ab:6e84ba17
Events : 899185
Number Major Minor RaidDevice State
- 0 0 0 removed
1 8 81 1 active sync /dev/sdf1
这是输出mdadm.conf：它让我怀疑，因为只列出了两个数组。
# definitions of existing MD arrays
ARRAY /dev/md/1 metadata=1.2 UUID=e0e49af7:7a791be6:168f01ab:6e84ba17 name=GC01SRVR:1
ARRAY /dev/md/0 metadata=1.2 UUID=21f37e07:aea8dfec:e78b69d7:46f70c4d name=GC01SRVR:0
考虑到 md0 是操作系统所在的位置，如何将丢失的驱动器添加回各自的阵列？