[ceph-users] Newbie Requesting Help - Please, This Is Driving Me Mad/Crazy! - A Follow Up

Hi Everyone, Thanks to all for both the online and PM help - once it was pointed out that the existing (Octopus) Documentation was... less than current I ended up using the ceph-volume command. A couple of follow-up questions: When using ceph-volume lvm create: 1. Can you specify an osd number, or are you stuck with the system assigned one? 2. How do you use the command with only part of a HDD - ie something along the lines of 'ceph-volume lvm create --data /dev/sda4' (because sda1-3 contains the os/boot/swap systems)? 3. Where the hell do the drives get mapped/mounted/whatever too? Thanks for the help Regards Dulux-Oz