Change location of control files

[st2000]

What is the best way to change the location of the controlfiles incase the db is already in existance.
situation 1:
A new disk is added (disk#3) on the solaris box and already I have 2 controlfiles in each disk. How would I react.. My steps are: Shudown the DB, Edit the init.ora with the 3rd location, copy the controlfile for disk2 to disk3, then bring the database up.. Is this correct.
Situation 2:
In my another db I have 2 disks but controlfiles 2 and 3 are in the same disk #2, same directory.. If I have to change the path of the 3rd file alone, I should.. Bring down the db, change the location of the 3rd file by editing the pfile and bring up the database.
Please confirm.
Thanks..

[rsuri]

Situation 1 (you are right about all the steps)

Situation 2 (you need to MOVE the 3rd file as well besides making changes in the INIT file)

- Rajeev

[sreddy]

Bottom line:

By the time you bring up the database, your controlfiles whats you mentioned in config.ora/init.ora should be there. Otherwise you get error, while bringing up the database.