Vinum on an existing system

[Hank Wethington]

Greetings!

I have recently taken over a machine (FreeBSD 4.8-STABLE 7/31/03) that
is a mail server (qmail, imap, apache2, pop3, etc) and due to the
companies relience upon the machine, want to use vinum to mirror the
drive. 

I've been reading the vinim information and a great site about setting
it up. However, one question remains. It seems as though it should have
been setup from them start. Can an existing installation be converted to
vinum withouth reinstalling everything or should I just setup a cron job
to dump the drive contents to the other dirve. Both drives are IDE 40GB.
Here is the df on the main drive, as the second one hasn't even been
formatted.

Filesystem  1K-blocks    Used    Avail Capacity  Mounted on
/dev/ad0s1a   7225214 2207318  4439880    33%    /
/dev/ad0s1f  14985070     268 13785998     0%    /usr/home
/dev/ad0s1e  15483630   33702 14211238     0%    /var
procfs              4       4        0   100%    /proc
Swap is 768mb

The machine is about to be put into production where it will host 50+
domains and about 2500 mail accounts. 

Your help and input is appreciated
-- 
Hank Wethington <bsd at info-logix.com>