How to roaming the SSD in ProLiant Geni

I have a DL380p Gen8 with two SSD and been make a RAID 1,

I turn off the DL380p Gen8,

and  move this two SSD to another DL380p Gen8,

and then power on the second DL380p Gen8,

but the two SSD can not been found in the second DL380p Gen8,

so I turn off the second DL380p Gen8,

and move the two DL380p Gen8 to the original DL380p Gen8,

but it still can't been found!

Will anybody can help me!

Please,

Thanks!