更换主板后无法重新组装 RAID 1

Question

我刚刚更换了服务器计算机的主板、CPU 和 RAM，我真的希望 RAID 在我重新启动时能够正常工作。但是，RAID 不会出现，而且 mdadm 似乎甚至不记得它。

$ cat /proc/mdstat
Personalities : [linear] [multipath] [raid0] [raid1] [raid6] [raid5] [raid4] [raid10]
unused devices: <none>

但是，mdadm.conf 文件中似乎仍然有 RAID 的记录：

$ cat /etc/mdadm/mdadm.conf
# mdadm.conf
#
# !NB! Run update-initramfs -u after updating this file.
# !NB! This will ensure that initramfs has an uptodate copy.
#
# Please refer to mdadm.conf(5) for information about this file.
#

# by default (built-in), scan all partitions (/proc/partitions) and all
# containers for MD superblocks. alternatively, specify devices to scan, using
# wildcards if desired.
#DEVICE partitions containers

# automatically tag new arrays as belonging to the local system
HOMEHOST <system>

# instruct the monitoring daemon where to send mail alerts
MAILADDR root

# definitions of existing MD arrays

# This configuration was auto-generated on Wed, 25 Mar 2020 15:22:26 -0600 by mkconf
ARRAY /dev/md0 metadata=1.2 name=clover:0 UUID=87dda574:9a1f83c3:4433dd3a:4b3d9847

我尝试了所有能找到的组装和扫描命令，但都没有用

另外，mdadm 检查的内容如下：

$ sudo mdadm --examine /dev/sd[a-z]
/dev/sda:
   MBR Magic : aa55
Partition[0] :    250066944 sectors at         2048 (type 83)
/dev/sdb:
   MBR Magic : aa55
Partition[0] :   4294967295 sectors at            1 (type ee)
/dev/sdc:
   MBR Magic : aa55
Partition[0] :   4294967295 sectors at            1 (type ee)

我确实备份了所有数据，但重新组建突袭小组会简单得多。

有任何想法吗？