Logical Disk to Physical Drive Mapping

[Peter Jones]

Given the situation where you have several identical physical drives,
what is the best way to turn logical labels such as da5 into a physical
identifier like "the drive in slot 4"?

It looks like I could use dmesg, some assumptions, and glabel to label
the logical disks.  However, I plan to use ZFS and as far as I can tell
glabel doesn't support ZFS.

What is the de facto way of doing this?  I'll be using FreeBSD-CURRENT
for this, btw.

-- 
Peter Jones, http://pmade.com
pmade inc.  Louisville, CO US