1. brew install coreutils (to update dd)
2. diskutil list
diskutil unmountDisk /dev/disk12
diskutil unmountDisk /dev/disk11
3. time caffeinate sudo gdd if=/dev/rdisk2 of=/dev/rdisk5 bs=1M status=progress conv=noerror,sync
time caffeinate sudo gdd if=/dev/rdisk11 of=/dev/rdisk12 bs=1M status=progress conv=noerror,sync
refs:
https://egeek.me/2019/05/25/cloning-timemachine-backup-drive-to-another-disk/
https://osxdaily.com/2016/08/09/find-disk-id-device-node-identifier-mac/
https://tecadmin.net/copy-a-gpt-partition-table-to-new-disk/
https://superuser.com/questions/234199/good-block-size-for-disk-cloning-with-diskdump-dd
