更换主板与处理器后mdadm RAID5阵列无法识别的求助

各位好，我遇到了一个棘手的问题：我把原本运行mdadm RAID5的服务器，迁移到了一块新的主板和处理器上，启动盘还是原来的那一块，但现在执行mdadm --assemble --scan时，系统完全找不到这个RAID阵列了。

之前的主板用的是Intel RAID控制器，新主板启动后，系统显示组成RAID5的四块硬盘都不属于任何RAID阵列。

我执行了几个相关命令，得到的输出如下：

执行mdadm --examine检查各磁盘的输出 #

root@server:/dev# mdadm --examine /dev/sdc

/dev/sdc:

MBR Magic : aa55

Partition[0] :   4294967295 sectors at            1 (type ee)

root@server:/dev# mdadm --examine /dev/sdd

/dev/sdd:

MBR Magic : aa55

Partition[0] :   3907029167 sectors at            1 (type ee)

root@server:/dev# mdadm --examine /dev/sde

/dev/sde:

MBR Magic : aa55

Partition[0] :   3907029167 sectors at            1 (type ee)

root@server:/dev# mdadm --examine /dev/sdf

/dev/sdf:

MBR Magic : aa55

Partition[0] :   3907029167 sectors at            1 (type ee)

root@server:/dev# mdadm --detail --scan

执行mdadm --assemble --scan --verbose的输出 #

mdadm --assemble --scan --verbose shows:

/dev/sdc:

MBR Magic : aa55

Partition[0] :   4294967295 sectors at            1 (type ee)

root@server:/dev# mdadm --examine /dev/sdd

/dev/sdd:

MBR Magic : aa55

Partition[0] :   3907029167 sectors at            1 (type ee)

root@server:/dev# mdadm --examine /dev/sde

/dev/sde:

MBR Magic : aa55

Partition[0] :   3907029167 sectors at            1 (type ee)

root@server:/dev# mdadm --examine /dev/sdf

/dev/sdf:

MBR Magic : aa55

Partition[0] :   3907029167 sectors at            1 (type ee)

root@server:/dev# mdadm --detail --scan

各磁盘的详细信息 #

Disk /dev/sdc: 2.73 TiB, 3000592982016 bytes, 5860533168 sectors
Disk model: WDC WD30EZRX-00M
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: gpt
Disk identifier: 46FF8DF1-6613-474B-A513-FEB737C14B77

Disk /dev/sdd: 1.82 TiB, 2000398934016 bytes, 3907029168 sectors
Disk model: ST2000DM001-1CH1
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: gpt
Disk identifier: 5BD6C09B-47DA-4BBD-9E85-46A43FF9610E

Disk /dev/sde: 1.82 TiB, 2000398934016 bytes, 3907029168 sectors
Disk model: WDC WD20EARS-00M
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt
Disk identifier: D8822B21-1E1E-4F1B-9A49-9B2A0A76C48A

Disk /dev/sdf: 1.82 TiB, 2000398934016 bytes, 3907029168 sectors
Disk model: WDC WD20EARS-00M
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt
Disk identifier: EDA76DF6-EF1F-4D48-ABF1-70E253D26B10

有没有大佬能给点思路，怎么才能让mdadm重新识别到这个RAID5阵列呢？

备注：内容来源于stack exchange，提问作者Essonworks