How to move a tablespace?

["Chris Hoover" <revoohc@xxxxxxxxx>]

How do you correctly move a tablespace?  

I am thinking this would be the process:
1.  Cleanly shutdown Postgres
2.  Move tablespace directory and all contents to new location
3.  Create a symlink from the new location back to the old location
4.  Restart Postgres

Would that be correct?  Or is there a better way.

Thanks,

Chris