we have a 12 bay R510 server running  VMware ESXi 6.0.0 build-2809209, (no OMSA installed)

In the Perc H700 Bios raid controller menu I see internal drive 13 as failed.I have a replacement disk but before i swap out i would like to know which is the correct way:

turn off the server and replace AND CONNECT the faulty disk and startup again.

OR

turn off the server replace the faulty disk but NOT CONNECT, then turn on server and connect new disk while running.

I´m asking as in this video:

https://youtu.be/RJGgwc9-Dbo?t=177

it is mentioned that replacing the disk in an off state might wipe/mirror the wrong disk (12) and it should be done while the server is running.

any info appreciated, thanks!