How-to change the name of an MD device (mdadm)

Problem

Here is the output from mdadm -Esv: ARRAY /dev/md127 level=raid0 num-devices=2 UUID=d89d9d45:9a420812:c44c77eb:7ee19756 devices=/dev/sdb8,/dev/sda8 This is a v0.90 array. The question is as follows: how does mdadm assign the name for an according device, where does it store it and how does one chan…