Failed disk is /dev/sde and new one is /dev/sdh
First copy the partition data from another disk
# sgdisk /dev/sda -R /dev/sdh #sgdisk -G /dev/sdh
Reread the partition table
# partprobe /dev/sdh
Remove the failed disk
mdadm --manage /dev/md2 --fail /dev/sde1 mdadm --manage /dev/md2 --remove /dev/sde1
Add new disk
mdadm --manage /dev/md2 --add /dev/sdh1
and wait for rebuild