Adding existing clariion luns to esx server

Hi team,

I have three esx servers in vcenter having clariion datastores.so,i need to add one more esx server in that cluster,how can i add those existing datastores to the new esx server without data lost.

for adding new lun--config--storage--add storage--select disk lun--choose luns--block size--finish.

For adding existing luns,giving WWN to storage team,is it correct.

Can anyone please provide steps.

Thanks,

Team.