Cleanly rebooting/halting an ENBD machine (RAID, LVM, cryptoloop, etcetera)

Hi,

I'm just wondering if you guys have consistency problems when rebooting
or halting an ENBD client. Currently, my configuration is as following:

enbd devices > RAID5 > LVM > cryptoloop > reiserfs

When halting or rebooting, services are stopped in default (Debian?) order:
1) enbd
2) LVM
3) RAID

So, enbd is stopped before RAID has had a chance to stop the array
cleanly. Correct me if I'm wrong, but I think this can cause consistency
problems when the device is under high load, resulting in an out-of-sync
RAID-array. Do you guys have any ideas on this?

-- Bas