Exchanging hard disks in a Software-RAID

I am using hetzner dedicated server but my one hard drive is crashed so they exchange the hard drive now i have to mirror the data from other hard drive i am using RAID1 they provide me documentation i am providing that documentation URL to let me know if any body can do this here is the documentation URL: https://docs.hetzner.com/robot/dedicated-server/raid/exchanging-hard-disks-in-a-software-raid/