LVM on DRBD - how do I get these to mount automatically after reboot?
 

I've a Fedora 14 system running a DRBD device which is the physical volume for a LVM.

After reboot, the DRBD hosted LVM volume group isn't active, and so if I have any mount points in the fstab the server fails to boot.

How do I get these to automatically activate and mount following a reboot?

I have been reticent to take this off the "zero-reply" list as I haven't touched this. However, I see no-one else has responded, so ...
This sounds like a "timing" issue.
Are you sure you don't have things arse-about ?. Maybe the DRBD [cs]hould be defined on LVM pv's, and contain a "simple" filesystem rather than (yet another) block device driver that LVM exposes. Redhat does the scan for LVM entities early in the boot process - if your network infrastructure isn't up and active, you won't find that LVM on DRBD.
nfs has a separate mount module that incorporates timeouts for fstab to ensure the network (eventually) comes up so mounts can complete. You might be in need of something similar.

Else you could remove the entries from fstab altogether and do the mounts in rc.local - also enables you to include sleep(s) in need.