Could anyone explain to me what does "Erase data before use" do in vSAN encryption ?
I found below blog however I still don't understand....
Understanding vSAN Encryption - "Erase disks before use"
What I understand right now is after you enable vSAN encryption:
1. Evacuate all data existing in disk to other disk
2. Encrypt disk
3. Return evacuated data back to disk
4. Do the above process to the next disk
So what is the difference if I choose "Erase data before use" or not ?