Recommended gmirror solution with swap?

[Michael Knoll]

I am planning on converting my FreeBSD machine to use gmirror on two
40gig drives.  Reading the handbook and other sites with instructions
on configuring gmirror, I notice they all disable swap.  Is this
acceptable?  Is it expected swap be on another drive?  If so, is there
a solution which I can keep the swap on the mirror. as I don't have
another drive?

Thanks,
Mike