抱歉问了这么愚蠢的问题，但我真的很困惑。
我的 RAID1 是否正在运行且状态良好？
lsb_release -a
No LSB modules are available.
Distributor ID: Debian
Description: Debian GNU/Linux 10 (buster)
Release: 10
Codename: buster
root@trekto:~# uname -a
Linux trekto 4.19.0-9-amd64 #1 SMP Debian 4.19.118-2 (2020-04-29) x86_64 GNU/Linux
service mdadm status
● mdadm.service
Loaded: masked (Reason: Unit mdadm.service is masked.)
Active: inactive (dead)
好像不跑，但是：
lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 74.5G 0 disk
├─sda1 8:1 0 953M 0 part
│ └─md0 9:0 0 952M 0 raid1 /boot
├─sda2 8:2 0 11.2G 0 part
│ └─md1 9:1 0 11.2G 0 raid1 [SWAP]
└─sda3 8:3 0 62.4G 0 part
└─md2 9:2 0 62.4G 0 raid1 /
sdb 8:16 0 74.5G 0 disk
├─sdb1 8:17 0 953M 0 part
│ └─md0 9:0 0 952M 0 raid1 /boot
├─sdb2 8:18 0 11.2G 0 part
│ └─md1 9:1 0 11.2G 0 raid1 [SWAP]
└─sdb3 8:19 0 62.4G 0 part
└─md2 9:2 0 62.4G 0 raid1 /
cat /proc/mdstat
Personalities : [raid1] [linear] [multipath] [raid0] [raid6] [raid5] [raid4] [raid10]
md0 : active raid1 sdb1[0] sda1[2]
974848 blocks super 1.2 [2/2] [UU]
md2 : active raid1 sdb3[0] sda3[2]
65421312 blocks super 1.2 [2/2] [UU]
md1 : active (auto-read-only) raid1 sdb2[0] sda2[1]
11709440 blocks super 1.2 [2/2] [UU]
unused devices: <none>
mdadm --detail /dev/md*
mdadm: /dev/md does not appear to be an md device
/dev/md0:
Version : 1.2
Creation Time : Sat May 9 22:34:20 2020
Raid Level : raid1
Array Size : 974848 (952.00 MiB 998.24 MB)
Used Dev Size : 974848 (952.00 MiB 998.24 MB)
Raid Devices : 2
Total Devices : 2
Persistence : Superblock is persistent
Update Time : Fri May 22 21:28:57 2020
State : clean
Active Devices : 2
Working Devices : 2
Failed Devices : 0
Spare Devices : 0
Consistency Policy : resync
Name : trekto:0 (local to host trekto)
UUID : 1fb0b10f:68dd1abe:07ace5bf:ce797ed8
Events : 281
Number Major Minor RaidDevice State
0 8 17 0 active sync /dev/sdb1
2 8 1 1 active sync /dev/sda1
/dev/md1:
Version : 1.2
Creation Time : Sat May 9 22:34:39 2020
Raid Level : raid1
Array Size : 11709440 (11.17 GiB 11.99 GB)
Used Dev Size : 11709440 (11.17 GiB 11.99 GB)
Raid Devices : 2
Total Devices : 2
Persistence : Superblock is persistent
Update Time : Sat May 9 23:33:57 2020
State : clean
Active Devices : 2
Working Devices : 2
Failed Devices : 0
Spare Devices : 0
Consistency Policy : resync
Name : trekto:1 (local to host trekto)
UUID : cbdd415f:20b34ad6:1fe7991d:cb2c78e1
Events : 34
Number Major Minor RaidDevice State
0 8 18 0 active sync /dev/sdb2
1 8 2 1 active sync /dev/sda2
/dev/md2:
Version : 1.2
Creation Time : Sat May 9 22:34:47 2020
Raid Level : raid1
Array Size : 65421312 (62.39 GiB 66.99 GB)
Used Dev Size : 65421312 (62.39 GiB 66.99 GB)
Raid Devices : 2
Total Devices : 2
Persistence : Superblock is persistent
Update Time : Fri May 22 21:46:07 2020
State : clean
Active Devices : 2
Working Devices : 2
Failed Devices : 0
Spare Devices : 0
Consistency Policy : resync
Name : trekto:2 (local to host trekto)
UUID : d8bda655:d94cf675:5af758eb:f6d3a91b
Events : 3199
Number Major Minor RaidDevice State
0 8 19 0 active sync /dev/sdb3
2 8 3 1 active sync /dev/sda3
答案1
是的，mdadm 正在运行并且显示运行状况良好。
可能无法正常工作的是监视健康状况的守护进程，它会发送故障通知。