pvcreate is the first step of creating LVM areas. If you're not going to use LVM then you don't need to pvcreate. However I recommend that you _do_.
Yea I guess I was rather vague. I do plan to carve up the md device w/ lvm once it's up. Historically I run pvcreate on lvm partitions for various reasons.
Should I create an pvm partition on the md0 device? I was not even sure I could...
Thanks! jlc